292 entries under adjective topic. ×

1
highbrow(indifferent, detached, distant, apathetic)
1
home-free(secure, safe, snug, intact)
1
impartial(indifferent, detached, distant, apathetic)
1
impassible(bad, cold, aloof, no feelings)
1
impracticable
1
in safety(expression, secure, safe, snug)
1
inattentive(indifferent, detached, distant, apathetic)
1
indestructible
1
indurate(bad, cold, aloof, no feelings)
1
inextricable
1
inhuman(bad, cold, aloof, no feelings)
1
insentient(bad, cold, aloof, no feelings)
1
intact(secure, safe, snug, sheltered)
1
invincible
1
iron-hearted(bad, cold, aloof, no feelings)
1
irresponsive(bad, cold, aloof, no feelings)
1
jelled(set, hard, tough, solid)
1
jellied(set, solid, heavy, deep)
1
laid-back(calm, restrained, unconcerned, subdued)
1
listless(indifferent, detached, distant, apathetic)
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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>