149 entries under rough topic. ×

1
case-harden(verb, dull, develop, adjust)
1
churlish(adjective, hard, tough, severe)
1
climatize(verb, dull, develop, adjust)
1
conform(verb, dull, develop, adjust)
1
contemptible(adjective, hard, evil, nasty)
1
corporeal(adjective, dull, low, offensive)
1
crass(adjective, dull, low, rude)
1
crude(adjective, dull, low, rude)
1
dangerous(adjective, hard, evil, nasty)
1
deaden(verb, dull, develop, adjust)
1
despicable(adjective, mean, hard, evil)
1
develop(verb, dull, adjust, scratch)
1
difficult(adjective, hard, evil, nasty)
1
dirty(adjective, hard, nasty, rude)
1
disagreeable(adjective, mean, hard, tough, evil)
1
discipline(verb, dull, develop, adjust)
1
dishonorable(adjective, hard, evil, nasty)
1
down(adjective, hard, evil, nasty)
1
embitter(verb, dull, develop, adjust)
1
exacting(adjective, hard, tough, severe)
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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>