99 entries under foul topic. ×

48
bad(adjective, mean, weak, wrong, evil)
43
lousy(adjective, good, mean, bad, hard)
35
vile(adjective, good, mean, bad, hard)
27
nasty(adjective, adverb, good, bad, hard)
23
corrupt(adjective, immoral, vicious, dishonest, characteristic)
23
loathsome(adjective, good, mean, bad, nasty)
23
putrid(adjective, strong, evil, taste, offensive)
22
decayed(verb, adjective, mean, bad, soft)
20
obnoxious(adjective, good, bad, nasty, offensive)
20
offensive(adjective, adverb, bad, strong, nasty)
19
repulsive(adjective, mean, bad, nasty, offensive)
17
tainted(adjective, bad, disease, offensive, unpleasant)
17
stinking(adjective, bad, strong, nasty, offensive)
16
rancid(adjective, bad, rank, sour)
16
stale(adjective, strong, offensive, sweet, rank)
15
dirty(adjective, bad, hard, evil, rough)
15
filthy(adjective, good, bad, evil, nasty)
15
revolting(adjective, adverb, nasty, offensive, unpleasant)
14
fetid(adjective, strong, offensive, unpleasant, sweet)
14
noxious(adjective, bad, rank, disagreeable)
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APASmart Define. (2016). rotten thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/rotten/thesaurus/synonyms
ChicagoSmart Define. 2016. "rotten thesaurus" https://smartdefine.org/rotten/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, rotten thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/rotten/thesaurus/synonyms>.
MLASmart Define. "rotten thesaurus" 3 April 2016. Web. 26 September 2026. <https://smartdefine.org/rotten/thesaurus/synonyms>