280 entries under tough topic. ×

8
uncaring(adjective, person, mean, cool)
7
set(adjective, mean, strong, severe)
7
blunt(adjective, severe, harsh, plain)
7
cold-hearted(adjective, person, severe, attitude)
7
concentrated(adjective, set, strong, great)
7
hardheaded(adjective, strong, sound, reasonable)
7
insensible(adjective, strong, severe, careless)
7
pragmatic(adjective, sound, reasonable, excite)
7
realistic(adjective, sound, reasonable, excite)
7
resolute(adjective, sharp, firm, intense)
7
shrewd(sound, reasonable, sharp, sensible)
7
unemotional(adjective, mean, cool, severe)
6
bothersome(adjective, severe, difficult, offensive)
6
critical(adjective, difficult, harsh, delicate)
6
deep(adjective, strong, severe, intense)
6
extreme(adjective, strong, great, severe)
6
inelastic(adjective, severe, firm, harsh)
6
iron(noun, adjective, mean, strong)
6
uncordial(adjective, person, severe, cruel)
6
vindictive(adjective, person, mean, 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>