214 entries under rough topic. ×

30
thorny(adjective, difficult, delicate, complex)
30
trying(adjective, dull, tough, severe)
29
knotty(adjective, severe, difficult, violent)
29
painful(adjective, evil, nasty, difficult)
29
taxing(adjective, tough, severe, difficult)
28
stern(adjective, person, mean, tough, easy)
25
callous(adjective, mean, cool, tough, severe)
25
adamant(adjective, mean, strong, tough)
25
obdurate(adjective, mean, strong, cool, tough)
25
hard-nosed(adjective, mean, strong, tough, severe)
23
brutal(adjective, person, mean, tough, severe)
23
nasty(adjective, mean, cool, tough, severe)
22
demanding(adjective, dull, tough, easy, severe)
21
austere(adjective, strong, tough, severe)
20
merciless(adjective, mean, tough, severe, evil)
20
strict(adjective, strong, tough, easy, severe)
20
troubled(adjective, difficult, complex, painful)
19
onerous(adjective, dull, great, tough, severe)
19
rigorous(adjective, strong, tough, severe)
18
troublesome(adjective, tough, evil, difficulty)
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APASmart Define. (2016). hard thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hard/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard thesaurus" https://smartdefine.org/hard/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hard thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hard/thesaurus/synonyms>.
MLASmart Define. "hard thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/hard/thesaurus/synonyms>