292 entries under adjective topic. ×

2
flinty
2
hardhearted(unfeeling, unresponsive, insensible, oblivious)
2
imperturbable(calm, restrained, subdued, impassive)
2
insensate(noun, bad, cold, aloof)
2
obdurate(unyielding, unbending, unreceptive)
2
obtuse(noun, unresponsive, oblivious, unmoved)
2
resistive(resist, resistant)
2
rigid(hard, tough, solid, detached)
2
stiff(set, hard, tough, solid)
2
strong(tough, sturdy, unaffected, resilient)
2
unemotional(indifferent, detached, distant, apathetic)
2
unkind(bad, cold, aloof, unresponsive)
2
unmovable(unyielding, unbending, unreceptive)
2
unreachable
1
adamant
1
against
1
as cold as charity(bad, cold, aloof, no feelings)
1
brute(bad, cold, aloof, no feelings)
1
buttoned up(expression, secure, safe, snug)
1
caked(set, solid, heavy, deep)
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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>