87 entries under foul topic. ×

42
crude(adjective, dull, mean, bad, hard)
40
indecent(adjective, coarse, rude, sex, obscene)
35
dirty(adjective, rude, sex, obscene, metter)
35
obscene(adjective, rude, offensive, sex, dirty)
34
gross(adjective, mean, bad, hard, smooth)
33
unrefined(adjective, dull, mean, bad, hard)
30
ribald(adjective, coarse, rude, indecent, offensive)
29
smutty(adjective, rude, sex, metter, dirty)
28
filthy(adjective, rude, obscene, offensive, dirty)
28
rough(adjective, dull, mean, bad, hard)
26
indelicate(adjective, dull, bad, hard, smooth)
25
lewd(adjective, sex, coarse, indecent, rude)
22
inelegant(adjective, dull, mean, hard, simple)
21
offensive(adjective, crude, rough, nasty, rude)
20
nasty(adjective, mean, bad, hard, evil)
19
improper(adjective, rude, offensive, dirty, society)
16
suggestive(adjective, rude, indecent, lewd, offensive)
15
earthy(adjective, nasty, rude, dirty, coarse)
15
naughty(adjective, sex, metter, obscene, rude)
14
indecorous(adjective, bad, hard, offensive, rude)
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APASmart Define. (2015). vulgar thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/vulgar/thesaurus/synonyms
ChicagoSmart Define. 2015. "vulgar thesaurus" https://smartdefine.org/vulgar/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, vulgar thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/vulgar/thesaurus/synonyms>.
MLASmart Define. "vulgar thesaurus" 17 July 2015. Web. 30 September 2026. <https://smartdefine.org/vulgar/thesaurus/synonyms>