Synonyms|230Antonyms|32|Broader|3Narrower|0Related|172
5
permeable
4
porous(adjective, absorbent)
3
absorbent(adjective, liquid)
2
leaky
2
passable
2
penetrable
2
pervious
2
spongy(adjective, cushioned, absorbent)
1
loose
1
semipermeable
1
spongelike
1
unsealed
0
absorptive
0
bendable
0
elastic
0
flexible
0
giving
0
gritty
0
laxative
0
malleable
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APASmart Define. (2015). impermeable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impermeable/thesaurus/antonyms
ChicagoSmart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impermeable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impermeable/thesaurus/antonyms>.
MLASmart Define. "impermeable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/impermeable/thesaurus/antonyms>