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What is another word for
airtight
?
Need
synonyms for airtight
? Here's a list of
similar words
from our
thesaurus
that you can use instead.
Contexts
Having no weak points
Not allowing air to escape or pass through
Firm, strong, or substantial
Not lacking any part or component
Adjective
▲
Having no weak points
incontestable
indisputable
sound
undeniable
unquestionable
foolproof
irrefutable
sure
absolute
certain
guaranteed
incontrovertible
positive
safe
unassailable
flawless
infallible
sure-fire
unbreakable
watertight
conclusive
indubitable
beyond dispute
beyond doubt
beyond question
invulnerable
strong
without loopholes
definite
convincing
decisive
clear
unequivocal
unmistakable
unarguable
definitive
unambiguous
final
categorical
clinching
irrefragable
unanswerable
inarguable
compelling
undebatable
obvious
plain
unchallengeable
emphatic
self-evident
clear-cut
not in doubt
beyond a shadow of a doubt
proven
evident
accomplished
ultimate
patent
demonstrative
apodictic
uncontroversial
firm
true
real
undoubted
reliable
perfect
trustworthy
impregnable
demonstrable
manifest
transparent
unerring
faultless
straightforward
observable
acknowledged
accepted
accurate
express
marked
pronounced
sure thing
as plain as a pikestaff
no mistake
staring one in the face
open and shut
established
unshakable
material
unequivocable
nailed-on
surefire
uncontestable
authentic
above criticism
credible
plausible
nailed down
no two ways about it
supreme
determined
ascertained
known
provable
set
confirmable
predestined
authoritative
establishable
destined
fixed
undisputable
verifiable
genuine
hard
telling
powerful
persuasive
cogent
deciding
irrevocable
unconditional
impressive
authenticating
precise
on ice
salted away
last
settling
having down pat
in the bag
dependable
determinative
validating
determinant
irrefrangible
revealing
resolving
tested
flat-out
all out
litmus test
straight out
what you see is what you get
tried
unfailing
efficacious
effective
goofproof
secure
tried and true
fail-safe
tried and tested
idiot-proof
never-failing
never failing
actual
veridical
unfabled
double-checked
decided
assured
settled
valid
palpable
unqualified
determining
distinct
explicit
forceful
confirmed
influential
well-founded
apparent
concrete
determinate
undisputed
outright
resolute
complete
flat
resounding
crucial
binding
confident
thorough
key
unquestioned
downright
doubtless
total
peremptory
principal
convinced
factual
pure
veritable
recognized
US
glaring
prime
satisfied
open-and-shut
unimpeachable
lucid
direct
solid
critical
consummate
crystal clear
thoroughgoing
uncontested
inexpugnable
undoubtable
weighty
concluding
implicit
conspicuous
significant
not in question
out-and-out
striking
cocksure
recognised
UK
important
incisive
trenchant
hard-and-fast
nonambiguous
unambivalent
pivotal
irreversible
exact
sheer
barefaced
undoubting
unalloyed
major
unwavering
fair
paramount
persuaded
univocal
bald-faced
utter
chief
stable
frozen
unmitigated
as sure as eggs is eggs
rank
black-and-white
overt
exhaustive
blatant
clean
all-out
sanguine
sharp
coercive
axiomatic
pellucid
perspicuous
free from doubt
closing
forcible
no ifs ands or buts
urgent
intelligent
undisguised
unchallenged
tangible
cut-and-dried
effectual
clear cut
full
well-defined
pertinent
specific
overwhelming
trusty
unfaltering
ironclad
unappealable
well grounded
finished
attestable
evincible
categoric
stark
self-confident
salient
unadulterated
prominent
unhesitating
noticeable
supportable
sustainable
checkable
empirical
empiric
perceptible
verified
profound
questionless
regular
simple
assertive
arrant
plumb
discernible
cotton-picking
dead
unrestricted
very
stone
inferable
bodacious
deadly
unmodified
dreadful
blooming
undoubtful
open
crashing
blank
luculent
in no doubt
bald
ringing
luminous
well-established
straight-out
broad
distinguishable
as plain as the nose on your face
bright-line
clear as a bell
writ large
tried-and-true
responsible
relevant
satisfying
intuitive
formidable
ingenious
insightful
great
crystalline
official
developmental
constructive
foundational
formative
seminal
creative
momentous
straight
specified
tyrannous
dogmatic
arbitrary
defined
quantified
faithful
sober
inevitable
limited
uncontradicted
right
set in stone
considerable
substantial
for sure
imperious
imperative
fateful
vital
freely admitted
not disputed
adamant
insistent
defining
dinkum
sealed
pat
well-grounded
sure-enough
hands-down
logical
serious
resolved
grand
comprehensive
overpowering
self-assured
self-conceited
unquestioning
beyond a doubt
unshaken
unvacillating
inerrant
failsafe
intent
crisp
fatal
undubitable
well-proven
as plain as day
irresistible
stone cold
one-hundred percent
well defined
unshakeable
irrebuttable
invincible
apodeictic
affirmative
cold
noncontroversial
cut and dried
out and out
down pat
for certain
without doubt
bona fide
deducible
comprehensible
ascertainable
hard and fast
immutable
unalterable
point blank
point-blank
odds-on
full-blown
overall
whole
full-scale
nof ifs ands or buts
can bet on it
permanent
clear in your mind
there are no two ways about it
invariable
beyond the shadow of a doubt
beyond a shadow of doubt
completed
all sewn up
without question
systematic
unimpaired
maximal
undivided
unabridged
can't-miss
unchangeable
irremediable
unreversible
essential
good
steady
calculable
lasting
indelible
changeless
unrectifiable
unrepealable
demonstrated
fulfilled
shaping
causal
evaluative
steadfast
certified
attested
checked
able
shoo-in
locked on
trustable
hopeful
developed
mature
bold
proved
upheld
supported
perceivable
visible
detectable
testable
recognizable
US
sustained
eventual
strict
dictated
mandatory
carved in stone
exacting
written
set in concrete
unbending
compulsory
ripe
terminal
wholesale
deductible
blinding
inescapable
unconcealed
frank
entire
perfected
flagrant
subsequent
ensuing
unsubtle
self-explanatory
believing
exposed
understandable
public
right under your nose
staring someone in the face
written all over one
sticking out a mile
standing out like a sore thumb
plain to see
recognisable
UK
as clear as day
standing out a mile
sticking out like a sore thumb
capital
resulting
consequent
latter
easy in one's mind
secure in one's belief
having no questions about
unshaken in one's belief
necessary
net
latest
having no doubt
right-down
holding the unwavering view
most influential
more ❯
“Build an
airtight
business case for new IT investments.”
Adjective
▲
Not allowing air to escape or pass through
closed
sealed
impermeable
shut
tight
waterproof
watertight
hermetic
hermetically sealed
impenetrable
shut tight
stopped up
impervious
coated
resistant
water-resistant
water-repellent
damp-proof
rainproof
taped up
wrapped
stuck down
vacuum-packed
fixed
firm
enclosed
weatherproof
proofed
completely sealed
rubberized
leakproof
waterproofed
waxed
sound
nonporous
locked
proof
fastened
blocked
clumped
plugged
snapped
obstructed
bolted
smothering
leak-proof
immune
imperviable
repellent
tamper-proof
-proof
repelling
padlocked
inaccessible
protected
cinched
resilient
treated
strong
soundproof
fireproof
bombproof
childproof
bulletproof
windproof
able to withstand
more ❯
“Store the biscuits in an
airtight
container.”
Adjective
▲
Firm, strong, or substantial
solid
sound
durable
firm
strong
reliable
robust
stable
compelling
established
steely
effective
unassailable
dependable
indestructible
infallible
toughened
cogent
reinforced
unshakable
indubitable
secure
unbreakable
fortified
impregnable
inured
enduring
hardened
steady
invulnerable
lasting
safe
stout
strengthened
sturdy
imperishable
invincible
substantial
cast-iron
long-lasting
rock-solid
tried-and-true
well-built
well-constructed
well-defined
well-established
well fortified
well-founded
well-made
hardy
heavy
impenetrable
immovable
hard
heavy-duty
armoured
UK
hard-wearing
unyielding
inviolable
hard as nails
bombproof
fixed
concrete
impassible
cohesive
knockabout
armored
US
unattackable
fast
resistant
well protected
flourishing
everlasting
well-armed
well-protected
seasoned
hard-bitten
storm-resistant
stormproof
well defended
tough
resilient
vigorous
rugged
stalwart
impervious
strongly made
bulletproof
lusty
indomitable
hearty
unconquerable
iron
forceful
made to last
built to last
unbeatable
protected
healthy
insurmountable
tenacious
tight
insuperable
waterproof
unstoppable
unshakeable
staunch
resolute
perdurable
rigid
indefatigable
fit
permanent
inflexible
windproof
impassable
wear-resistant
immune
adamantine
steadfast
unflinching
thick
hale
unbending
indurate
indurated
steeled
mighty
serviceable
able-bodied
weatherproof
undefeatable
infrangible
untouchable
uncompromising
secured
unsentimental
case-hardened
riveted
heavyweight
powerful
set
hard-boiled
fortress-like
bound
hard-edged
hard-nosed
safe and sound
hard-headed
industrial-strength
inexpugnable
shellproof
unsurpassable
thickened
stark
green
embastioned
girded
galvanized
US
tempered
galvanised
UK
steel
perduring
diuturnal
determined
adamant
stiff
husky
risk-free
foolproof
brick-wall
thickset
leathery
unwavering
well-defended
low-risk
hulking
insusceptible
vice-like
rock hard
strapping
brawny
riskless
hardass
dense
molded
US
conditioned
moulded
UK
withstanding
certain
locked
proof against
utilitarian
error-tolerant
tough as nails
shatterproof
non-breakable
nonbreakable
brass-bound
indissoluble
incorruptible
abiding
continuing
desensitized
US
water-resistant
snug
tightened
clenched
clinched
supreme
whole
unsurmountable
irresistible
eternal
capable
callous
impervious to
invulnerable to
immune to
irrepressible
persistent
unflagging
world-weary
dauntless
coarsened
frozen
perennial
intact
benumbed
desensitised
UK
lacking sentiment
toughened by experience
hard-handed
as hard as nails
as tough as old boots
immortal
clasped
fitted
lodged
stuck
wholesome
bouncing
well
well-conditioned
unimpaired
undamaged
persisting
practical
sensible
realistic
remaining
surviving
pragmatic
hard-as-nails
anchored
nailed
ongoing
flawless
vibrant
wide-ranging
sane
vital
undecayed
normal
perfect
rigorous
unhurt
unblemished
prevailing
moored
braced
jammed
rooted
tied
cemented
taut
lifelong
repellent
fastened
right as rain
alive and kicking
hanging together
holding together
up to snuff
in the pink
businesslike
common-sense
unromantic
commonsensical
unidealistic
treated
proofed
rainproof
imperviable
childproof
soundproof
fireproof
tamper-proof
leakproof
straightforward
fixed firmly
proof
damp-proof
done up
buttoned down
down-to-earth
level-headed
matter-of-fact
tough-minded
common-sensical
no-nonsense
able to withstand
solid as a rock
more ❯
Adjective
▲
Not lacking any part or component
perfect
complete
entire
whole
comprehensive
intact
unbroken
exhaustive
integral
unabridged
unblemished
sound
unimpaired
gross
undiminished
finished
plenary
absolute
uncut
maximal
seamless
sweeping
bulletproof
full-fledged
full-blown
full-scale
full
total
compleat
undivided
grand
in one piece
thorough
undamaged
untouched
unharmed
unscathed
overall
unspoilt
unspoiled
full-length
solid
unified
integrated
uninjured
unhurt
faultless
all-inclusive
uncondensed
broad
extensive
unreduced
unabbreviated
inclusive
wide-ranging
inviolate
aggregate
choate
operational
working
unhindered
unaffected
uneaten
completed
detailed
continuous
consummate
outright
conclusive
unexpurgated
free
unqualified
maximum
open
consolidated
general
all-in-one
composite
combined
categorical
uninterrupted
utter
one-piece
indivisible
organic
quorate
fully constituted
replete
ample
lock stock and barrel
unshortened
thoroughgoing
all
whole enchilada
whole nine yards
whole-hog
whole-length
full-dress
full-out
hook line and sinker
full-on
full-blooded
all-out
the works
far-reaching
unmarked
flawless
unsullied
scatheless
unmarred
virgin
pristine
undefiled
unmutilated
unflawed
unviolated
together
unsevered
imperforate
indiscrete
all in one piece
more ❯
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airtight
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airtightness
airtightly
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?
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Nearby Words
airtight case
airtightly
airtightness
airtight pot
airtime
air time
air tickets
air ticket
air that we breathe
air terminal
air taxis
air taxi
8-letter Words Starting With
a
ai
air
airt
airti
airtig
airtigh
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airtight
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