80 entries under harsh topic. ×

5
pitiless(adjective, severe, cruel, determined)
5
unfeeling(adjective, hard, tough, severe)
5
unforgiving(adjective, hard, rough, cruel)
4
cold(adjective, close, hard, cool, severe)
4
hard-boiled(adjective, mean, strong, hard, tough)
4
hard-hearted(adjective, mean, hard, inflexible)
4
single-minded(adjective, tough, cruel, determined)
3
intense(adjective, clear, tough, severe)
3
serious(adjective, close, strong, hard, tough)
3
unappeasable(adjective, cruel, determined, fierce)
3
unsparing(adjective, close, strong, hard, tough)
2
astringent(adjective, close, strong, hard, tough)
2
bound(adjective, strong, flat, firm)
2
dead set on(expression, adjective, idiom, strong, flat)
2
hard-line(adjective, strong, hard, tough, rough)
2
rough(adjective, strong, hard, tough, severe)
2
stringent(adjective, severe, cruel, determined)
2
taut(adjective, hard, rough, firm)
1
bound and determined(expression, adjective, idiom, cruel)
1
bullhead(adjective, mean, hard, inflexible)
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APASmart Define. (2016). unbending thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unbending/thesaurus/synonyms
ChicagoSmart Define. 2016. "unbending thesaurus" https://smartdefine.org/unbending/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unbending thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unbending/thesaurus/synonyms>.
MLASmart Define. "unbending thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/unbending/thesaurus/synonyms>