3
soporific(adjective, senseless)
3
spiritless(adjective, dull, quiet, hard, cool)
3
standoffish(adjective, unfriendly, unemotional, emotionless, taciturn)
3
steel(verb, dull, close, set, fix)
3
steeled(noun, adjective, hard, unfeeling, unsympathetic)
3
stockish(adjective, bad, cold, aloof, no feelings)
3
stoic(adjective, cool, cold, indifferent, blank)
3
stubborn(adjective, mean, hard, tough, severe)
3
stupid(adjective, senseless)
3
swooning(adjective, senseless)
3
tearless(adjective, bad, cold, aloof, no feelings)
3
temper(verb, close, set, fix, settle)
3
thickened
3
torpid(adjective, dull, quiet, hard, flat)
3
trance-like(adjective, senseless)
3
tyrannical(adjective, hard, tough, evil, nasty)
3
unalive(adjective, bad, cold, aloof, no feelings)
3
unapologetic
3
uninterested(adjective, indifferent, detached, distant, apathetic)
3
unsparing(adjective, mean, tough, severe, harsh)
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APASmart Define. (2016). callous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>