53 entries under adjective topic. ×

13
porous(spongy, permeable, perforated, absorbent)
9
pervious(accessible, spongy, porous, permeable)
8
open(sensitive, apt, likely, liable)
7
permeable(spongy, porous)
7
vulnerable(open, sensitive, apt, likely)
5
liable(open, sensitive, apt, likely)
4
accessible(safe, permeable, travelable, drivable)
4
passable(safe, permeable, travelable, drivable)
4
receptive
4
susceptible(open, sensitive, apt, likely)
3
absorbent(liquid, spongy, porous, permeable)
2
approachable
2
assailable(open, sensitive, apt, likely)
2
attackable(open, sensitive, apt, likely)
2
beatable(open, sensitive, apt, likely)
2
conquerable(open, sensitive, apt, likely)
2
spongy
2
vincible(open, sensitive, apt, likely)
1
absorptive
1
diaphanous
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APASmart Define. (2015). penetrable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/penetrable/thesaurus/synonyms
ChicagoSmart Define. 2015. "penetrable thesaurus" https://smartdefine.org/penetrable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, penetrable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/penetrable/thesaurus/synonyms>.
MLASmart Define. "penetrable thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/penetrable/thesaurus/synonyms>