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What is the opposite of inefficacious?

Need antonyms for inefficacious? Here's a list of opposite words from our thesaurus that you can use instead.

Adjective
▲
Opposite of having no real use, point or meaning
efficacious
effective
effectual
efficient
deadly
expedient
fruitful
operant
potent
productive
profitable
successful
ultraefficient
virtuous
prudent
judicious
advantageous
practical
appropriate
advisable
sensible
wise
useful
apt
suitable
fitting
beneficial
politic
powerful
helpful
operative
fit
desirable
pragmatic
worthwhile
valuable
proper
gainful
constructive
tactical
capable
strategic
opportune
active
convenient
serviceable
timely
adequate
competent
propitious
strong
utilitarian
necessary
energetic
nifty
of benefit
of help
of use
of service
of assistance
to one's own advantage
in one's own interests
functional
operational
able
working
sufficient
expert
workable
significant
skillfulUS
skilfulUK
purposeful
usable
operable
meaningful
rewarding
skilled
important
functioning
worthy
qualified
valid
useable
utilizableUS
ultrapractical
practicable
feasible
applicable
operating
running
remunerative
serious
consequential
hopeful
thriving
dexterousUS
dextrousUK
handy
experienced
utilisableUK
accomplished
complete
adept
abundant
proficient
copious
good
sound
enough
money-making
consummated
ultracompetent
tasty
organizedUS
fulfilling
reliable
possible
shy
flourishing
prosperous
neat
organisedUK
tidy
triumphant
ready
lucky
victorious
cut out for
suited
fecund
prolific
fertile
befitting
plentiful
healthy
fulfilled
full
busy
occupied
interesting
satisfying
favorableUS
favourableUK
relevant
exploitable
entire
filled
raised
replete
purposive
lucrative
substantial
telling
on
invaluable
eventful
weighty
considerable
material
positive
going
viable
knowledgeable
deep
talented
alive
merited
habile
brilliant
polished
sententious
authorizedUS
excellent
satisfactory
well-functioning
great
reasonable
adroit
acceptable
masterly
equipped
dynamite
decent
up and running
in effect
in operation
in use
in working order
in action
ready for action
gifted
trained
savvy
virtuoso
authorisedUK
Adjective
▲
Opposite of having the desire to do idealistic deeds without pragmatism
clear-eyed
clear-sighted
cautious
down-to-earth
practical
pragmatic
realistic
sensible
thoughtful
unromantic
wise
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Related Words and Phrases

inefficaciously
inefficaciousness

See Also

Nearby Words
inefficaciously
inefficaciousness
inefficacy
inefficience
inefficiencies
inefficiency
inefficacies
ineffectualness
ineffectually
ineffectuality
ineffectual
ineffectivenesses
13-letter Words Starting With
i
in
ine
inef
ineff
ineffi
ineffic
ineffica
inefficac
inefficaci
inefficacio
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