111 entries under adjective topic. ×

4
unaffected(temper, cold, negative, aloof)
4
uncaring(bad, temper, cold, negative)
4
unimpressionable(hard, affect, dead, impassive)
4
unresponsive(quiet, bad, hard, cold)
4
unsympathetic(quiet, bad, cold, aloof)
3
bloodless(hard, difficult, troubled, inflexible)
3
disinterested(temper, cold, negative, aloof)
3
dispassionate(cold, indifferent, unyielding)
3
frigid(temper, cold, negative, behave)
3
icy(temper, cold, negative, behave)
3
immovable
3
inhuman(bad, temper, cold, negative)
3
insentient(bad, cold, aloof, no feelings)
3
invincible
3
pococurante(temper, cold, negative, aloof)
3
protected
3
safe
3
secure
3
spiritless(dull, quiet, flat, heavy)
3
thick-skinned(hard, insensitive, unsusceptible)
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APASmart Define. (2015). impassible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/impassible/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassible thesaurus" https://smartdefine.org/impassible/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, impassible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/impassible/thesaurus/synonyms>.
MLASmart Define. "impassible thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/impassible/thesaurus/synonyms>