13
permeable(adjective, rough, coarse, opening, spongy)
12
spongy(adjective, light, soft, slight, easy)
10
penetrable(adjective, spongy, permeable, perforated, absorbent)
10
pervious(adjective, opening, accessible, spongy, permeable)
8
airy(adjective, light, slight, easy, thin)
8
holey
6
poriferous
5
absorbent(adjective, soft, liquid, spongy, springy)
4
leaky(adjective, permeable)
4
fine(adjective, light, delicate, loose, sheer)
4
leachy
4
open(adjective, permeable, perforated)
4
spongelike(adjective, absorbent)
3
cellular(adjective, sponge)
3
cribriform
3
filigree
3
honeycombed(verb, opening, sponge)
3
light(adjective, soft, fine, thin, heavy)
3
perforated
2
cavernous
<1234510>
11 years ago|8.7k views|share |citing 
APASmart Define. (2015). porous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/porous/thesaurus/synonyms
ChicagoSmart Define. 2015. "porous thesaurus" https://smartdefine.org/porous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, porous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/porous/thesaurus/synonyms>.
MLASmart Define. "porous thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/porous/thesaurus/synonyms>