165 entries under adjective topic. ×

1
stolid(cool, blank, aloof, unemotional)
1
taciturn(cool, blank, aloof, unemotional)
1
thick-skinned(mean, hard, tough, harsh)
1
tough(mean, hard, harsh, inflexible)
1
tough nut to crack(expression, idiom, mean, hard)
1
trifling(calm, cool, relaxed, detached)
1
unbending(mean, hard, harsh, inflexible)
1
uncompassionate(mean, hard, tough, harsh)
1
uncompromising(mean, hard, tough, harsh)
1
unconcerned(calm, cool, relaxed, detached)
1
uncooperative(mean, hard, tough, harsh)
1
unemotional(calm, mean, hard, cool)
1
unexcitable(cool, blank, aloof, unemotional)
1
unexcited(calm, cool, relaxed, detached)
1
unfeeling(calm, mean, hard, cool)
1
unflappable(calm, cool, relaxed, casual)
1
unmoved(cool, blank, aloof, unemotional)
1
unperturbed(calm, cool, relaxed, detached)
1
unrelenting(mean, hard, tough, harsh)
1
unruffled(calm, cool, relaxed, casual)
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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>