65 entries under hard topic. ×

11
stiff(adjective, severe, rough, firm)
11
stubborn(adjective, appearance, tough, rough)
11
unforgiving(adjective, mean, severe, rough)
10
mean(adjective, person, severe, sharp)
9
rough(adjective, tough, severe, difficult)
9
rugged(adjective, tough, severe, rough)
9
ruthless(adjective, appearance, mean, severe)
8
obstinate(adjective, tough, severe, rough)
8
unfeeling(adjective, mean, tough, severe)
7
gruff(adjective, severe, sharp, nasty)
7
hard-nosed(adjective, tough, severe, rough)
6
bitter(adjective, tough, severe, sharp)
6
merciless(adjective, person, appearance, mean)
6
oppressive(adjective, tough, severe, rough)
5
hard-boiled(adjective, tough, severe, rough)
5
hard-line(adjective, tough, severe, rough)
5
headstrong(adjective, tough, rough, harsh)
5
inclement(adjective, tough, severe, rough)
5
pitiless(adjective, mean, severe, sharp)
5
sharp(adjective, severe, nasty, harsh)
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APASmart Define. (2016). stern thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stern/thesaurus/synonyms
ChicagoSmart Define. 2016. "stern thesaurus" https://smartdefine.org/stern/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, stern thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stern/thesaurus/synonyms>.
MLASmart Define. "stern thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/stern/thesaurus/synonyms>