88 entries under harsh topic. ×

3
cold(adjective, mean, indifferent, cruel)
3
pitiless(adjective, mean, cruel, determined)
3
ruthless(adjective, mean, hard, rough)
2
bound(adjective, strong, tough, flat, firm)
2
cold-blooded(adjective, person, mean, feelings)
2
dead set on(expression, adjective, idiom, strong, secure)
2
definite(adjective, strong, severe, flat, firm)
2
hard-line(adjective, strong, hard, tough, rough)
2
heartless(adjective, mean, hard, tough)
2
rough(adjective, person, strong, hard, tough)
2
undeviating(adjective, strong, flat, certain)
2
unemotional(adjective, mean, hard, cold)
1
arbitrary(adjective, hard, severe, rough)
1
bound and determined(expression, adjective, idiom, cruel)
1
bullhead(adjective, mean, hard, tough)
1
changeless(adjective, severe, firm, solid)
1
feral(adjective, mean, cruel, vicious)
1
ferocious(adjective, mean, hard, rough)
1
go for broke(expression, adjective, idiom, cruel)
1
hang-tough(adjective, strong, hard, tough)
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APASmart Define. (2016). adamant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/adamant/thesaurus/synonyms
ChicagoSmart Define. 2016. "adamant thesaurus" https://smartdefine.org/adamant/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, adamant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/adamant/thesaurus/synonyms>.
MLASmart Define. "adamant thesaurus" 23 March 2016. Web. 28 September 2026. <https://smartdefine.org/adamant/thesaurus/synonyms>