1,192 entry under adjective topic. ×

18
beastly(adverb, bad, nasty, low)
18
detestable(good, taste, nasty, offensive)
18
frightful(dull, evil, nasty, awful)
18
lewd(offensive, vulgar, rude, dirty)
18
mephitic(bad, strong, offensive, sweet)
18
outrageous(bad, blue, evil, nasty)
18
villainous(mean, bad, wrong, evil)
18
yucky(bad, nasty, offensive, unpleasant)
17
base(noun, adverb, characteristic, mean)
17
monstrous(adverb, evil, nasty, low)
17
bawdy(dirty, rude, raw, nasty)
17
foetid(feature, bad, spot, awful)
17
iniquitous(mean, bad, wrong, evil)
17
mucky(dull, flat, nasty, offensive)
17
muddy(verb, upset, hurt, harm)
17
scurrilous(blue, offensive, rude, coarse)
17
shameful(characteristic, bad, wrong, evil)
16
vicious(bad, wrong, evil, nasty)
16
despicable(good, bad, evil, nasty)
16
nefarious(good, bad, wrong, evil)
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APASmart Define. (2016). foul thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/foul/thesaurus/synonyms
ChicagoSmart Define. 2016. "foul thesaurus" https://smartdefine.org/foul/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, foul thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/foul/thesaurus/synonyms>.
MLASmart Define. "foul thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/foul/thesaurus/synonyms>