103 entries under cold topic. ×

46
relentless(adjective, mean, strong, hard, tough)
30
hard(adjective, mean, strong, cool, tough)
25
stony(adjective, person, mean, hard, cool)
21
tough(adjective, mean, strong, hard, cool)
19
hardened(adjective, person, hard, tough, severe)
17
callous(adjective, person, mean, hard, cool)
16
severe(adjective, mean, strong, hard, tough)
15
unfeeling(adjective, mean, hard, cool, tough)
13
hard-boiled(adjective, person, strong, hard, tough)
13
hard-hearted(adjective, mean, hard, tough, severe)
13
harsh(adjective, mean, strong, hard, cool)
13
remorseless(adjective, mean, tough, harsh, resist)
13
unsympathetic(adjective, mean, hard, cool, tough)
12
heartless(adjective, mean, feeling, hard, cool)
12
steely(adjective, strong, hard, tough)
9
austere(adjective, mean, strong, hard, tough)
9
cold-blooded(adjective, person, mean, hard, cool)
9
merciless(adjective, person, mean, hard, tough)
9
pitiless(adjective, mean, hard, tough, severe)
9
uncompassionate(adjective, person, mean, hard, cool)
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APASmart Define. (2016). obdurate thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms
ChicagoSmart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, obdurate thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>.
MLASmart Define. "obdurate thesaurus" 23 March 2016. Web. 22 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms>