24
stinking(adjective, bad, strong, evil, nasty)
23
filthy(adjective, dirty, vulgar, bad, unclean)
23
horrid(adjective, bad, evil, taste, like)
23
gross(adjective, bad, wrong, blue, evil)
23
horrible(adjective, dull, blue, evil, nasty)
22
smutty(adjective, vulgar, unclean, offensive, dirty)
22
obscene(adjective, vulgar, offensive, bad, dirty)
22
fetid(adjective, strong, offensive, unpleasant, sweet)
22
terrible(adjective, dull, evil, nasty, offensive)
22
shocking(adjective, dull, blue, evil, nasty)
22
objectionable(adjective, dull, bad, nasty, offensive)
22
sordid(adjective, bad, awful, terrible, dirty)
22
squalid(adjective, taste, poor, clean, nasty)
21
bad(adjective, dull, mean, wrong, severe)
21
awful(adjective, bad, nasty, offensive, terrible)
21
evil(adjective, mean, bad, wrong, blue)
21
odious(adjective, good, bad, evil, taste)
21
putrid(adjective, quiet, strong, taste, offensive)
21
disagreeable(adjective, dull, bad, nasty, unpleasant)
21
hateful(adjective, mean, bad, wrong, evil)
10 years ago|60k views|share |citing 
APASmart Define. (2016). foul thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/foul/thesaurus/synonyms
ChicagoSmart Define. 2016. "foul thesaurus" https://smartdefine.org/foul/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, foul thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/foul/thesaurus/synonyms>.
MLASmart Define. "foul thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/foul/thesaurus/synonyms>