170 entries under hard topic. ×

55
unpleasant(adjective, nature, dull, mean, bad)
53
vile(adjective, good, dull, mean, bad)
49
disagreeable(adjective, dull, mean, bad)
46
cruel(adjective, mean, cool, tough)
41
repugnant(adjective, good, dull, mean, bad)
40
mean(verb, adjective, good, person, bad)
37
repellent(adjective, dull, mean, bad)
34
dirty(adjective, mean, bad, blue)
31
painful(adjective, bad, difficult, offensive)
29
dire(adjective, difficult, awful, terrible)
29
vicious(adjective, mean, bad, wrong)
28
severe(adjective, bad, tough, difficult)
27
rough(adjective, mean, bad, severe)
26
serious(adjective, bad, difficult, offensive)
25
gross(adjective, mean, bad, tough)
25
difficult(adjective, rough, rude, unpleasant)
24
grievous(adjective, difficult, unpleasant, awful)
24
rotten(adjective, adverb, good, bad)
24
sad(adjective, difficult, dark, unpleasant)
24
sticky(adjective, difficult, terrible, dirty)
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APASmart Define. (2016). nasty thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/nasty/thesaurus/synonyms
ChicagoSmart Define. 2016. "nasty thesaurus" https://smartdefine.org/nasty/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, nasty thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/nasty/thesaurus/synonyms>.
MLASmart Define. "nasty thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/nasty/thesaurus/synonyms>