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What is another word for
efficacy
?
Need
synonyms for efficacy
? Here's a list of
similar words
from our
thesaurus
that you can use instead.
Contexts
The ability to produce a desired effect or result
The state or condition of being useful
The quality of being clear, logical, and convincing
The strength and vitality required for sustained physical or mental activity
Noun
▲
The ability to produce a desired effect or result
effectiveness
efficiency
value
power
productiveness
success
virtue
capacity
efficaciousness
efficacity
potency
use
usefulness
ability
capability
effect
effectualness
fruitfulness
performance
adequacy
advantage
benefit
competence
constructiveness
edge
effectuality
potence
successfulness
capableness
influence
sufficiency
strength
weight
worth
productivity
suitability
effectivity
merit
utility
organization
US
adeptness
skill
competency
skilfulness
suitableness
potential
force
facility
resourcefulness
organisation
UK
talent
fitness
appropriateness
acceptability
satisfactoriness
orderliness
prosperity
appositeness
planning
impact
regulation
appropriacy
aptitude
prosperousness
aptness
operation
proficiency
commensurateness
thoroughness
expertise
profitability
helpfulness
deftness
skillfulness
prowess
faculty
clout
function
know-how
asset
agency
qualifications
forcefulness
validity
validness
rightness
fittingness
properness
progress
eligibility
progression
what it takes
activity
instrumentality
scheduling
structure
capabilities
carrying on
standardization
US
management
fairness
ampleness
reasonableness
functioning
pertinence
passableness
tolerability
coherence
order
working
projection
professionalism
readiness
requisiteness
economy
behaviour
UK
action
plenty
tolerableness
abundance
enough
preparation
outlining
forecasting
standardisation
UK
time management
running
logicality
action capability
powerfulness
behavior
US
cost-effectiveness
bang for the buck
distinction
gift
expertness
artistry
flair
virtuosity
property
potentiality
savvy
nous
finesse
propensity
endowment
mastery
knack
wherewithal
means
bent
calibre
UK
right stuff
instinct
chops
smarts
might
qualification
skillset
competitiveness
adroitness
technique
savoir faire
caliber
US
command
dexterity
genius
dynamism
forte
quality
grace
attribute
excellence
plus
excellency
credit
advantageousness
meritoriousness
long suit
strong suit
cardinal virtue
good point
good quality
plus point
strong point
redeeming feature
craft
touch
agility
experience
poise
class
form
cleverness
panache
pizzazz
US
ease
skills
polish
refinement
elegance
nimbleness
accomplishment
pzazz
UK
effortlessness
craftsmanship
sophistication
workmanship
art
style
dexterousness
handiness
masterfulness
inclination
gracefulness
artistic ability
slickness
acumen
knowledge
grasp
fluency
ingenuity
mastership
mind
brain
head
moxie
stuff
smoothness
ableness
leaning
savoir-faire
green thumb
natural ability
game
achievement
practicality
magic
smartness
versatility
steadiness
mojo
precision
polished skill
expertism
grip
intelligence
sharpness
masterliness
dodge
artfulness
goods
puissance
accuracy
neatness
hard skill
brains
quickness
niftiness
delicacy
wizardry
legerdemain
spryness
stature
straightforwardness
eye-hand coordination
hand-eye coordination
sleight of hand
up to it
the goods
understanding
easiness
simplicity
authority
training
gumption
practice
maturity
life skills
practical knowledge
specialty
US
speciality
UK
metier
thing
métier
learning
makings
IQ
advancement
headway
bag
department
medium
niche
eminency
cup of tea
core competency
claim to fame
special ability
more ❯
“Current evidence on the
efficacy
of acupressure and acupuncture in treating pregnancy-induced nausea is inconclusive.”
Noun
▲
The state or condition of being useful
utility
usefulness
benefit
use
value
advantage
effectiveness
service
practicality
profit
avail
help
helpfulness
convenience
mileage
worth
productiveness
serviceability
advantageousness
viability
expediency
functionality
workability
account
appropriateness
feasibility
efficiency
serviceableness
practicability
fitness
profitability
handiness
favor
US
favour
UK
note
point
function
relevance
adequacy
applicability
niftiness
good
assistance
gain
merit
substance
aid
purpose
significance
quality
importance
goodness
neatness
usability
versatility
impact
influence
sense
consequence
power
upside
effect
edge
bearing
strong point
perks
vantage
advantages
success
benefits
boot
validity
aim
reward
profitableness
worthiness
greatness
meaningfulness
meaning
betterment
gratification
improvement
boon
virtue
significancy
calibre
UK
estimation
caliber
US
grade
stature
excuse
call
asset
grounds
justification
start
desirability
potency
magnitude
strength
implication
superiority
import
bang for the buck
interest
blessing
welfare
prosperity
plus
well-being
benediction
perk
happiness
behoof
percentage
satisfaction
mark
eminence
sake
moment
usage
weight
concern
advancement
weightiness
gravity
seriousness
prominence
momentousness
signification
pith
strengthening
prize
nutritional
health
nutritious
fortune
greater good
privilege
bonus
attraction
expedience
appeal
excellence
distinction
allure
meritoriousness
behalf
good fortune
health-giving
commonwealth
nourishing
godsend
additional benefit
leg-up
added extra
fringe benefit
perquisite
leeway
leverage
class
attractiveness
credit
preference
beauty
good point
support
foredeal
advisability
break
return
luck
pre-eminence
joyfulness
pleasure
melioration
grace
solace
manna
anodyne
felicity
enjoyment
delight
consolation
comfort
ease
joy
relief
growth
mercy
ace in the hole
ace up your sleeve
valuation
endowment
gift
talent
perfection
prosperousness
wellness
robustness
weal
wholeness
soundness
healthiness
wholesomeness
successfulness
more ❯
Noun
▲
The quality of being clear, logical, and convincing
cogency
persuasiveness
effectiveness
persuasion
force
authority
forcefulness
power
weight
strength
conclusiveness
convincingness
influence
potency
validity
soundness
punch
point
suasiveness
plausibility
foundation
impressiveness
authoritativeness
eloquence
logic
impact
credibility
rationality
reasonableness
intensity
vigor
US
vigour
UK
dynamism
logicality
coherence
unanswerability
validness
articulateness
clarity
conviction
lucidity
methodicalness
orderliness
consistency
good organization
might
value
powerfulness
clout
substance
capability
muscle
sway
effect
significance
efficaciousness
grounds
ability
gravity
puissance
competence
emphasis
capacity
potence
sinew
horsepower
energy
firepower
mightiness
efficiency
weightiness
forcibleness
appeal
wallop
bite
dominance
determination
gumption
sapience
legality
legitimacy
viability
defensibility
sustainability
justifiability
believability
substantiality
reliability
authenticity
bona fides
candidness
right
indisputability
truth
realness
truthfulness
fierceness
assertiveness
aggressiveness
vividness
efficacity
richness
greatness
grandeur
virtue
performance
consequence
importance
genuineness
genuinity
moment
leverage
import
pull
brawn
prowess
teeth
consideration
credit
prestige
momentousness
heft
account
toughness
robustness
valour
UK
muscularity
stamina
sturdiness
command
stoutness
beef
mana
signification
magnitude
jurisdiction
mastery
arm
hard power
valor
US
domination
moxie
strong arm
steam
control
pith
in
juice
potential
kick
headiness
what it takes
more ❯
Noun
▲
The strength and vitality required for sustained physical or mental activity
energy
life
vitality
fire
liveliness
spirit
animation
drive
verve
pep
vigour
UK
zip
go
power
vivacity
zest
get-up-and-go
might
strength
vigor
US
zeal
forcefulness
punch
spiritedness
stamina
zing
ardour
UK
bounce
dynamism
effervescence
enthusiasm
oomph
passion
potency
spark
sparkle
vibrancy
brio
buoyancy
determination
élan
exuberance
perkiness
pzazz
UK
pizzazz
US
sprightliness
vim
activity
dash
esprit
fizz
force
gusto
hardihood
juice
moxie
push
resilience
welly
exertion
feistiness
gas
intensity
spring
application
ardor
US
birr
effectiveness
efficiency
endurance
enterprise
fortitude
initiative
momentum
operativeness
pluck
resources
spontaneity
steam
toughness
tuck
vehemence
virility
beans
ginger
sap
snap
starch
vim and vigour
fervour
UK
fervor
US
vinegar
eagerness
vivaciousness
elan
ebullience
spunk
high spirits
panache
excitement
keenness
vigorousness
warmth
motivation
relish
earnestness
fervency
boldness
ambition
robustness
gumption
lustiness
avidity
tenacity
fieriness
vibrance
gaiety
violence
dedication
action
resolve
guts
ardency
impetus
joy
emotion
fierceness
muscle
appetite
commitment
doggedness
feeling
aggressiveness
heart
hustle
cheerfulness
briskness
happiness
zap
high-spiritedness
perseverance
zestfulness
ferocity
kick
passionateness
fanaticism
joie de vivre
peppiness
grit
intenseness
jauntiness
resolution
bang
jazziness
puissance
backbone
steadfastness
exhilaration
staying power
pertinacity
intentness
single-mindedness
bounciness
light-heartedness
heat
purposefulness
assiduity
enjoyment
will power
activeness
chirpiness
fury
effort
jollity
indefatigability
courage
persistence
pleasure
constancy
devotion
sinew
radiance
aggression
horsepower
readiness
urgency
flair
love
perseveration
purpose
delight
impact
confidence
audacity
merriment
tirelessness
strength of character
severity
clout
staunchness
resoluteness
assertiveness
impetuosity
cheeriness
fervidness
obstinacy
mettle
joyfulness
potence
firepower
nerve
tenaciousness
willpower
vividness
bravery
capability
intrepidity
relentlessness
fever
thrust
tension
courageousness
diligence
motion
pepper
ecstasy
flamboyance
spin
zealousness
resource
quickness
conviction
pertness
desire
movement
stick-to-itiveness
sincerity
breeziness
irrepressibility
propulsion
sedulousness
daring
velocity
rapture
depth
hardiness
firmness
interest
speed
wholeheartedness
stuff
ferment
punchiness
hunger
colour
UK
powerfulness
pertinaciousness
heartiness
ambitiousness
color
US
indomitability
determinedness
stubbornness
frenzy
strong-mindedness
brightness
forward spin
braveness
bloom
brilliance
friskiness
strain
pluckiness
ability
vehemency
valor
US
obdurateness
self-motivation
valour
UK
ferociousness
virtuosity
get up and go
what it takes
white heat
fire in belly
driving force
inspiration
thew
dauntlessness
bite
strength of will
firmness of purpose
right stuff
style
Dunkirk spirit
buoyance
scintillation
resistance
stick-to-it-iveness
flourish
imagination
conscientiousness
resourcefulness
pressure
spryness
topspin
strong emotion
sedulity
self-confidence
boisterousness
creativity
inventiveness
legs
tolerance
elation
assiduousness
industry
aspiration
avidness
turbulence
jazz
impulse
stimulus
stylishness
savagery
tempestuousness
leadership
venturesomeness
committedness
soul
motive
industriousness
wildness
stress
self-assurance
alacrity
airiness
trouble
impulsion
overdrive
decision
gameness
emotionalism
joviality
decidedness
peartness
devotedness
assurance
spine
productiveness
adventurousness
flare-up
asperity
acrimony
rampancy
sore
acerbity
storm
stew
rise
rabidity
conniption
sportiveness
weight
hard work
intent
balls
alertness
bustle
merriness
excess
concentration
empressement
jolliness
potential
laboriousness
willingness
busyness
extremity
power of endurance
strength of mind
blitheness
striving
hustle and bustle
sentiment
humour
UK
humor
US
obduracy
playfulness
hot-bloodedness
lightheartedness
inflexibility
decisiveness
vital spark
life force
intestinal fortitude
physical energy
cheer
blithesomeness
thewiness
pith
capacity
red heat
high gear
satisfaction
granite
motive force
impelling force
affection
fun
moral fibre
UK
intension
lust
thirst
fearlessness
moral fiber
US
sunniness
forward motion
mirth
delirium
stickability
vengeance
affectivity
distraction
sense of purpose
go-getting
bulldog spirit
fixity of purpose
stout-heartedness
keen interest
slow burn
boiling point
display
desperation
psyche
aim
self-assertion
assertion
self-assertiveness
mana
intrepidness
adventure
sassiness
optimism
beef
bound
bob
pizazz
gutsiness
will
fire in the belly
ostentation
exhibitionism
glitz
youthfulness
joyousness
character
smartness
wits
gayness
abandon
richness
fascination
full of life
delectation
great enthusiasm
stoicism
light
swagger
point
good humor
US
impellent
éclat
good cheer
good humour
UK
impressiveness
tittup
lilt
bliss
splendour
UK
manfulness
bravura
lustre
UK
furiousness
have-a-go attitude
toughness of spirit
pulse
emphasis
incentive
spunkiness
stir
gallantry
luster
US
originality
immovability
flamboyant confidence
inclination
fondness
ingenuity
purposiveness
splendor
US
calenture
bottle
steel
actuation
desirousness
gladsomeness
joys of spring
endeavor
US
labour
UK
endeavour
UK
burning passion
impatience
brawn
grievousness
seriousness
imaginativeness
snappiness
elan vital
taste
flurry
yen
volatility
excitedness
exuberancy
propelling force
surge
toil
cleverness
glow
flare
flame
fixed purpose
strong interest
love of life
Sitzfleisch
charisma
elegance
talent
emulation
yearning
hankering
itch
longing
being full of the joys of spring
fight
rigour
UK
steadiness
spriteliness
nervous spirits
frolicsomeness
competitiveness
morale
entrepreneurial spirit
a sense of purpose
mania
juggernaut
brawniness
brute force
grunt
physical ability
caliber
US
cojones
calibre
UK
quality
makeup
devoutness
pitch
militancy
will to win
pains
labor
US
rigorousness
motive power
full head of steam
rampage
uproar
feverishness
agitation
furore
UK
flap
furor
US
rage
hysteria
deliriousness
innovativeness
extreme
mightiness
dispatch
dazzle
mobility
what-it-takes
driving power
forespin
rigor
US
continuance
hardworkingness
acceleration
athleticism
muscularity
ferity
quick-wittedness
lifeblood
functioning
native wit
self-reliance
spirit of adventure
acuteness
volume
deepness
tenseness
magnitude
weightiness
sharpness
draft
US
draught
UK
brunt
sock
animal spirits
breath
motility
high pitch
continuing motion
pow
arm
subjection
conditioning
movability
vital force
care
grittiness
attentiveness
heedfulness
suppleness
agility
flexibility
carefulness
attention
heed
dogmatism
certitude
fiber
US
fibre
UK
certainty
amusement
willfulness
freedom of movement
stiff upper lip
irateness
implacability
fitness
thrill
sitzfleisch
bodily process
body process
bodily function
glee
entertainment
play
foolery
blast
buffoonery
festivity
wind in one's sails
true grit
wantonness
silliness
foolishness
jocundity
knavery
tomfoolery
clowning
funniness
facetiousness
jocosity
felicity
gamboling
US
romping
joking
festiveness
comedy
laughter
nonsense
ball
rejoicing
revelry
gladness
hilarity
gambolling
UK
jocularity
roguishness
gleefulness
waggery
riot
solace
treat
jocoseness
grins
good time
humorousness
gambol
levity
mischief
diversion
jesting
mischievousness
living it up
mirthfulness
rascality
liking
urge
weakness
craving
fancy
faithfulness
partiality
attachment
piety
reverence
allegiance
piousness
spirituality
fidelity
religiousness
fealty
wish
deference
service
observance
consecration
adherence
appetency
propensity
favour
UK
favor
US
preference
sanctity
penchant
devotement
adoration
worship
pietism
stomach
religiosity
anticipation
proclivity
religionism
need
pining
like
shine
hopefulness
disposition
greed
soft spot
bullishness
appreciation
bent
predilection
faith
mind
sanguineness
bias
ache
love affair
voracity
greediness
leaning
use
appetence
expectation
infatuation
palate
tendency
easiness
sureness
trust
encouragement
calmness
idealism
positivism
hope
attraction
affinity
stimulation
thing
sanguinity
excitation
amenability
jones
thirstiness
letch
loyalty
positive attitude
gratification
goodwill
obligingness
contentment
rose-colored glasses
turmoil
contentedness
looking on bright side
voraciousness
excitability
effusiveness
anxiety
hurry
madness
flutter
appetition
perturbation
euphoria
virtue
tooth
positiveness
craze
pep talk
druthers
predisposition
hungering
proneness
want
burning
cup of tea
obsession
sanctimoniousness
preparedness
admiration
respect
glory
sensation
feelings
emotions
hungriness
estimation
intense desire
praise
support
insistence
unction
forcibleness
nervousness
buzz
vociferousness
forthrightness
outspokenness
indulgence
instigation
religious observance
religious zeal
religious fervor
sense of God
expectancy
demand
goods
fixation
suspense
facility
address
ado
agreement
consent
agreeableness
positivity
solicitude
carefreeness
haste
savor
US
savour
UK
wishing
kicks
intoxication
charge
engrossment
deliberation
pertinence
hastiness
rashness
monomania
eye
addiction
strong desire
impulsiveness
anger
cooperation
volition
compliance
jubilation
obsessiveness
fandom
hurrah
solemnity
Pollyannaism
great expectations
rosy outlook
silver lining
bright outlook
ants in pants
bubbliness
content
thirsting
aridity
overenthusiasm
incandescence
favouritism
UK
favoritism
US
turn on
torrid heat
sweltering heat
extreme heat
tropical heat
intense heat
oppressive heat
high temperature
over-enthusiasm
good spirits
transports
favourite
UK
favorite
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efficacy
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Related Words and Phrases
efficient
efficiency
efficacity
efficacious
efficaciousness
efficiently
efficaciously
efficiencies
efficacies
efficacities
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Nearby Words
efficiencies
efficiency
efficiency engineer
efficiency expert
efficient
efficient business
efficacity
efficacities
efficaciousness
efficaciously
efficacious
efficacies
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