Synonyms|230Antonyms|32|Broader|3Narrower|0Related|172
0
mac
0
mack
0
mackintosh
0
mackintoshes
0
muddy
0
mysterious
0
mystic
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narrow(adjective, close, solid, short, substantial)
0
neck and neck(adjective, close)
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non-translucent
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non-transparent
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obdurate(unyielding, unbending, unreceptive)
0
obfuscated
0
obscured
0
oilskin
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packed in(expression, adjective, solid, dense, compressed)
0
packed together(expression, adjective, solid, dense, compressed)
0
permeable
0
pressed(adjective, solid, tight, dense, compressed)
0
pukka
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APASmart Define. (2015). impermeable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impermeable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, impermeable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impermeable/thesaurus/synonyms>.
MLASmart Define. "impermeable thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/impermeable/thesaurus/synonyms>