1,055 entry under adjective topic. ×

98
hard(person, dull, mean, body)
61
difficult(dull, hard, great, easy)
55
severe(clear, bad, strong, hard)
51
rugged(action, strong, hard, sound)
50
rough(noun, action, person, mean)
46
strong(calm, person, body, strong)
44
arduous(dull, hard, great, easy)
41
laborious(dull, hard, great, easy)
40
burdensome(dull, hard, difficult, harsh)
39
harsh(mean, strong, hard, cool)
38
stubborn(characteristic, quality, mean, strong)
38
stressful(hard, difficult, complex)
34
knotty(hard, difficult, complex, troublesome)
34
sticky(feature, characteristic, hard, difficult)
34
taxing(hard, severe, rough, difficult)
34
toilsome(hard, difficulty, difficult, complex)
33
hard-nosed(mean, clear, strong, hard)
33
unyielding(characteristic, mean, clear, strong)
33
trying(dull, hard, rough, difficult)
30
burly(hard, difficult, complex)
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APASmart Define. (2016). tough thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tough/thesaurus/synonyms
ChicagoSmart Define. 2016. "tough thesaurus" https://smartdefine.org/tough/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, tough thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tough/thesaurus/synonyms>.
MLASmart Define. "tough thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/tough/thesaurus/synonyms>