Synonyms|119Antonyms|43|Broader|3Narrower|0Related|375

14 entries under enigmatical topic. ×

5
impenetrable(adjective, clear, open, dense, incomprehensible)
5
impervious(adjective, responsive, unable, watertight)
3
airtight(adjective, watertight, sealed)
1
watertight
0
Delphic(adjective, watertight)
0
bulletproof(adjective, watertight)
0
closed to(expression, adjective, watertight)
0
imperviable(adjective, watertight)
0
incognizable(adjective, watertight)
0
ungraspable(adjective, watertight)
0
unknowable(adjective, clear, plain, watertight)
0
unpiercable(adjective, watertight)
0
unpierceable(adjective, watertight)
0
unreceptive(adjective, affected, watertight)
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APASmart Define. (2015). penetrable thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/penetrable/thesaurus/antonyms
ChicagoSmart Define. 2015. "penetrable thesaurus" https://smartdefine.org/penetrable/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, penetrable thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/penetrable/thesaurus/antonyms>.
MLASmart Define. "penetrable thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/penetrable/thesaurus/antonyms>