135 entries under foul topic. ×

27
rough(adjective, mean, bad, hard, severe)
26
odious(adjective, good, bad, taste, offensive)
26
serious(adjective, bad, hard, difficult, offensive)
25
gross(adjective, mean, bad, hard, tough)
24
rotten(adjective, adverb, good, bad, hard)
24
ugly(adjective, bad, hard, evil, like)
23
messy(adjective, hard, difficult, unpleasant, terrible)
23
obscene(adjective, mean, bad, blue, rough)
22
ghastly(adjective, dull, bad, offensive, unpleasant)
22
tough(adjective, mean, bad, hard, cool)
21
stale(adjective, hard, difficult, rank, complex)
20
noxious(adjective, health, mean, bad, evil)
19
fusty(adjective, hard, difficult, rank, complex)
18
noisome(adjective, bad, blue, taste, offensive)
18
smutty(adjective, bad, blue, offensive, rude)
18
unclean(adjective, bad, blue, taste, offensive)
16
squalid(adjective, mean, taste, poor, clean)
16
vulgar(adjective, mean, bad, hard, evil)
15
dangerous(adjective, health, bad, hard, rough)
14
harmful(adjective, health, person, bad, offensive)
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APASmart Define. (2016). nasty thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/nasty/thesaurus/synonyms
ChicagoSmart Define. 2016. "nasty thesaurus" https://smartdefine.org/nasty/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, nasty thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/nasty/thesaurus/synonyms>.
MLASmart Define. "nasty thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/nasty/thesaurus/synonyms>