1
apathetic(adjective, hard, careless, indifferent, cruel)
1
arctic
1
asleep(adjective, dead, insensitive, insusceptible)
1
autistic
1
benumbed(adjective, hard, dead, unfeeling, unsympathetic)
1
blah(adjective, detached, impassive, unresponsive, laid-back)
1
blind to(verb, expression, adjective, phrasal verb, hard)
1
bloodless(adjective, hard, insensitive, unsusceptible)
1
blunt
1
careless(adjective, hard, indifferent, cruel, apathetic)
1
case-hardened(adjective, hard, careless, indifferent, cruel)
1
catatonic
1
chilly
1
closed
1
cold-hearted(adjective, unfeeling, unsympathetic, uncaring, insensitive)
1
composed(adjective, detached, impassive, unresponsive, dispassionate)
1
deadened(adjective, dead, insensitive, insusceptible)
1
deadpan(adjective, detached, impassive, unresponsive, laid-back)
1
deaf to(verb, expression, adjective, phrasal verb, hard)
1
detached(adjective, impassive, unresponsive, dispassionate, undemonstrative)
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APASmart Define. (2015). unimpressionable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unimpressionable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unimpressionable thesaurus" https://smartdefine.org/unimpressionable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unimpressionable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unimpressionable/thesaurus/synonyms>.
MLASmart Define. "unimpressionable thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/unimpressionable/thesaurus/synonyms>