Synonyms|230Antonyms|32|Broader|3Narrower|0Related|172

14 entries under adjective topic. ×

5
permeable
4
porous
3
absorbent
2
leaky
2
penetrable
2
pervious
2
spongy(cushioned, absorbent)
1
spongelike
0
absorptive
0
gritty
0
open
0
porose
0
sheer
0
transparent
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APASmart Define. (2015). impermeable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impermeable/thesaurus/antonyms
ChicagoSmart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, impermeable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impermeable/thesaurus/antonyms>.
MLASmart Define. "impermeable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impermeable/thesaurus/antonyms>