292 entries under adjective topic. ×

1
detached(indifferent, distant, apathetic, unfeeling)
1
diffident(indifferent, detached, distant, apathetic)
1
disinterested(indifferent, detached, distant, apathetic)
1
dispassionate(calm, indifferent, restrained, detached)
1
distant(indifferent, detached, apathetic, unfeeling)
1
easy-going(calm, restrained, unconcerned, subdued)
1
equitable(indifferent, detached, distant, apathetic)
1
fast
1
fixed(set, strong, tough, solid)
1
formidable
1
gelatinous(set, solid, heavy, deep)
1
gloppy(set, solid, heavy, deep)
1
guarded(secure, safe, snug, intact)
1
gummous(set, solid, heavy, deep)
1
gunky(set, solid, heavy, deep)
1
haughty(indifferent, detached, distant, apathetic)
1
heartless(indifferent, detached, distant, apathetic)
1
heavy(set, hard, tough, solid)
1
heedless(mean, violent, indifferent, wild)
1
hermetical
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APASmart Define. (2015). impervious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impervious/thesaurus/synonyms
ChicagoSmart Define. 2015. "impervious thesaurus" https://smartdefine.org/impervious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, impervious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impervious/thesaurus/synonyms>.
MLASmart Define. "impervious thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impervious/thesaurus/synonyms>