124 entries under strict topic. ×

115
stiff(adjective, feature, state, characteristic, tough)
108
tough(adjective, person, dull, mean, body)
107
firm(noun, adjective, adverb, feature, state)
85
difficult(adjective, dull, great, tough, easy)
73
rigid(adjective, feature, state, characteristic, mean)
68
severe(adjective, nature, mean, strong, tough)
63
tight(adjective, adverb, strong, severe, strain)
61
unyielding(adjective, mean, strong, tough, easy)
55
cruel(adjective, person, mean, strong, cool)
52
arduous(adjective, dull, great, tough, easy)
47
harsh(adjective, mean, strong, cool, tough)
40
rough(adjective, strong, great, tough, severe)
39
burdensome(adjective, dull, severe, rough, difficult)
37
inflexible(adjective, characteristic, mean, strong, tough)
37
stubborn(adjective, characteristic, quality, mean, strong)
35
toilsome(adjective, great, tough, difficulty, difficult)
35
rugged(adjective, strong, tough, severe, continue)
31
grievous(adjective, tough, severe, rough, difficult)
30
oppressive(adjective, dull, tough, severe, rough)
30
trying(adjective, dull, tough, severe, rough)
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APASmart Define. (2016). hard thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hard/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, hard thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>.
MLASmart Define. "hard thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms>