103 entries under dull topic. ×

42
unfeeling(noun, adjective, mean, bad)
41
insensitive(noun, adjective, quiet, mean)
19
numb(noun, verb, adjective, hard)
15
indurate(verb, adjective, close, set)
11
dead(adjective, quiet, flat, cold)
6
rough(verb, adjective, person, hard)
6
rude(adjective, hard, rough, nasty)
5
blunt(verb, adjective, develop, rough)
4
case-hardened(noun, verb, adjective, hard)
4
stolid(noun, adjective, quiet, cool)
3
brutalize(verb, develop, rough, adjust)
3
inure(verb, develop, rough, adjust)
3
spiritless(adjective, quiet, hard, cool)
3
steel(verb, close, set, fix)
3
torpid(adjective, quiet, hard, flat)
2
blank(adjective, person, quiet, flat)
2
coarse(adjective, rough, low, rude)
2
coarsen(verb, develop, rough, adjust)
2
stiffen(verb, close, set, fix)
2
strengthen(verb, close, set, fix)
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APASmart Define. (2016). callous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/callous/thesaurus/synonyms
ChicagoSmart Define. 2016. "callous thesaurus" https://smartdefine.org/callous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, callous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/callous/thesaurus/synonyms>.
MLASmart Define. "callous thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/callous/thesaurus/synonyms>