112 entries under foul topic. ×

8
unholy(adjective, evil, offensive, unpleasant, awful)
7
icky(adjective, good, quality, poor, nasty)
7
noisome(adjective, evil, offensive, rank, corrupt)
7
unkind(adjective, person, mean, wrong, evil)
6
disturbing(adjective, mean, wrong, severe, evil)
6
fusty(adjective, rank, disagreeable, sour)
6
high(adjective, rank, disagreeable, sour)
6
mephitic(adjective, evil, offensive, corrupt)
6
stinking(adjective, quality, evil, poor, offensive)
6
unappetizing(adjective, dull, offensive, disgusting)
6
unwholesome(adjective, mean, wrong, evil, sharp)
5
fetid(adjective, rank, corrupt, disgusting)
5
filthy(adjective, evil, nasty, low, offensive)
5
polluted(adjective, offensive, rank, corrupt)
5
threatening(adjective, mean, wrong, evil, nasty)
5
unfriendly(adjective, person, mean, wrong, evil)
4
decomposed(adjective, quiet, corrupt, disgusting)
4
funky(adjective, musty, pungent, stinking)
4
malodorous(adjective, offensive, rank, vile)
4
musty(adjective, sharp, unpleasant, rank)
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APASmart Define. (2016). bad thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/bad/thesaurus/synonyms
ChicagoSmart Define. 2016. "bad thesaurus" https://smartdefine.org/bad/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, bad thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/bad/thesaurus/synonyms>.
MLASmart Define. "bad thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/bad/thesaurus/synonyms>