170 entries under hard topic. ×

18
problematic(adjective, difficult, complex)
18
rugged(adjective, severe, rough, difficult)
18
sensitive(adjective, difficult, complex)
18
sore(adjective, severe, difficult, complex)
18
laborious(adjective, difficult, complex)
18
malicious(adjective, mean, bad, evil)
18
operose(adjective, difficult, complex)
18
stodgy(adjective, difficult, complex)
18
tricky(adjective, difficult, complex)
17
esoteric(adjective, evil, difficult, complex)
17
unkind(adjective, person, mean, cool)
16
bitter(adjective, mean, severe, sharp)
16
hostile(adjective, person, mean, severe)
16
vulgar(adjective, mean, bad, evil)
15
dangerous(adjective, health, bad, rough)
15
rude(adjective, mean, bad, blue)
13
coarse(adjective, mean, bad, tough)
13
contemptible(adjective, good, mean, bad)
13
lousy(adjective, good, bad, rough)
12
unfriendly(adjective, person, mean, bad)
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APASmart Define. (2016). nasty thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/nasty/thesaurus/synonyms
ChicagoSmart Define. 2016. "nasty thesaurus" https://smartdefine.org/nasty/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, nasty thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/nasty/thesaurus/synonyms>.
MLASmart Define. "nasty thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/nasty/thesaurus/synonyms>