Synonyms|230Antonyms|32|Broader|3Narrower|0Related|172

114 entries under adjective topic. ×

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cold
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confined(close, solid, short, substantial)
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confining(close, solid, short, substantial)
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cramped(solid, compact, tight, dense)
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cropped(close, solid, short, substantial)
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dim
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fixed
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formal
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galeproof
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hazy
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hermetically sealed
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impregnable
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muddy
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narrow(close, solid, short, substantial)
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neck and neck
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non-translucent
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non-transparent
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obfuscated
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obscured
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packed in(expression, solid, dense, compressed)
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APASmart Define. (2015). impermeable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impermeable/thesaurus/synonyms
ChicagoSmart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, impermeable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impermeable/thesaurus/synonyms>.
MLASmart Define. "impermeable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impermeable/thesaurus/synonyms>