| permeable(adjective, rough, coarse, opening, spongy) | |
| spongy(adjective, light, soft, slight, easy) | |
| penetrable(adjective, spongy, permeable, perforated, absorbent) | |
| pervious(adjective, opening, accessible, spongy, permeable) | |
| airy(adjective, light, slight, easy, thin) | |
| holey | |
| poriferous | |
| absorbent(adjective, soft, liquid, spongy, springy) | |
| leaky(adjective, permeable) | |
| fine(adjective, light, delicate, loose, sheer) | |
| leachy | |
| open(adjective, permeable, perforated) | |
| spongelike(adjective, absorbent) | |
| cellular(adjective, sponge) | |
| cribriform | |
| filigree | |
| honeycombed(verb, opening, sponge) | |
| light(adjective, soft, fine, thin, heavy) | |
| perforated | |
| cavernous |
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| APA | Smart Define. (2015). porous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/porous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "porous thesaurus" https://smartdefine.org/porous/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, porous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/porous/thesaurus/synonyms>. |
| MLA | Smart Define. "porous thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/porous/thesaurus/synonyms> |