Synonyms|159Antonyms|47|Broader|4Narrower|4Related|240
3
penetrable(adjective, watertight, enigmatical)
3
unsealed(adjective, loose, tight, vulnerable)
2
leaky
2
loose
2
open
2
permeable
2
pervious
2
possible
2
questionable
2
uncertain
2
unclosed(adjective, loose, vulnerable)
2
vulnerable
1
passable
1
porous
0
absorbent
0
accessible
0
amenable
0
apparent
0
approachable
0
artless
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APASmart Define. (2015). airtight thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/airtight/thesaurus/antonyms
ChicagoSmart Define. 2015. "airtight thesaurus" https://smartdefine.org/airtight/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, airtight thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/airtight/thesaurus/antonyms>.
MLASmart Define. "airtight thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/airtight/thesaurus/antonyms>