1
stoic(adjective, cool, blank, aloof, unemotional)
1
stoical(adjective, cool, blank, aloof, unemotional)
1
stolid(adjective, cool, blank, aloof, unemotional)
1
taciturn(adjective, cool, blank, aloof, unemotional)
1
thick-skinned(adjective, mean, hard, tough, harsh)
1
tough(adjective, mean, hard, harsh, inflexible)
1
tough nut to crack(expression, adjective, idiom, mean, hard)
1
trifling(adjective, calm, cool, relaxed, detached)
1
unbending(adjective, mean, hard, harsh, inflexible)
1
uncompassionate(adjective, mean, hard, tough, harsh)
1
uncompromising(adjective, mean, hard, tough, harsh)
1
unconcerned(adjective, calm, cool, relaxed, detached)
1
uncooperative(adjective, mean, hard, tough, harsh)
1
unemotional(adjective, calm, mean, hard, cool)
1
unexcitable(adjective, cool, blank, aloof, unemotional)
1
unexcited(adjective, calm, cool, relaxed, detached)
1
unfeeling(adjective, calm, mean, hard, cool)
1
unflappable(adjective, calm, cool, relaxed, casual)
1
unimpressionable
1
unmoved(adjective, cool, blank, aloof, unemotional)
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APASmart Define. (2015). unimpressible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unimpressible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unimpressible thesaurus" https://smartdefine.org/unimpressible/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unimpressible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unimpressible/thesaurus/synonyms>.
MLASmart Define. "unimpressible thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unimpressible/thesaurus/synonyms>