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impermeable
impermeable
synonyms
impenetrable
impervious
watertight
waterproof
sealed
tight
hermetically sealed
thick
hard
airtight
firm
solid
dense
close
compact
imperviable
hermetic
resistant
water-repellent
water-resistant
closed
inviolable
substantial
impassable
impregnable
damp-proof
close-grained
crowded
nonporous
proofed
packed
rubberized
shut
weatherproof
unyielding
short
secure
heavy
unpierceable
compressed
coated
invulnerable
unapproachable
stiff
set
unassailable
stopped up
tied
refractory
indestructible
more synonyms
impermeable
antonyms
permeable
penetrable
porous
spongy
absorptive
open
loose
soft
leaky
pervious
absorbent
unsealed
slack
sponge-like
yielding
clear
receptive
pellucid
poriferous
lacy
sorbefacient
spongelike
percolative
spongiose
thin
pulpous
tiffany
retentive
soaking
leachy
sensitive
vulnerable
smooth
uncramped
limpid
supple
slight
pure
springy
uncondensed
wide
weak
responsive
translucent
rubbery
squishy
sheer
sieve-like
resilient
pory
more antonyms