280 entries under tough topic. ×

6
violent(adjective, nature, strong, great)
6
wearing(adjective, dull, difficult, awkward)
5
apathetic(adjective, mean, cool, severe)
5
authoritarian(adjective, strong, severe, firm)
5
baffling(obscure, solid, awkward, dense)
5
bullheaded(adjective, strong, determined, resolute)
5
coarse(adjective, severe, sharp, rough)
5
compressed(adjective, set, strong, firm)
5
condensed(adjective, set, firm, solid)
5
dangerous(adjective, severe, evil, rough)
5
fierce(adjective, mean, strong, severe)
5
hard-hearted(adjective, person, mean, severe)
5
labored(adjective, great, rough, difficult)
5
mulish(adjective, mean, strong, determined)
5
numb(adjective, severe, cruel, unsympathetic)
5
perverse(adjective, mean, cruel, determined)
5
pigheaded(adjective, mean, harsh, determined)
5
practical(adjective, sound, reasonable, excite)
5
sinewy(adjective, strong, muscular, wiry)
5
sober(adjective, sound, reasonable, severe)
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APASmart Define. (2016). hard thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hard/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, hard thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>.
MLASmart Define. "hard thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms>