671 entries under bad topic. ×

6
dishonest(adjective, dirty, wicked, immoral)
6
disparaging(adjective, feature, awful)
6
error(noun, awful, terrible, mistake)
6
extreme(noun, adjective, feature, awful)
6
flagrant(adjective, feature, awful, vice)
6
ignoble(adjective, evil, nasty, base)
6
illegal(adjective, feature, awful, unreasonable)
6
insalubrious(adjective, feature, offensive, awful)
6
insulting(adjective, feature, awful)
6
jammed(adjective, feature, state, awful)
6
knavish(adjective, spoil, dishonest, immoral)
6
lascivious(adjective, feature, awful, negative)
6
malignant(adjective, feature, awful, malevolent)
6
offense(noun, spoil, awful, terrible)
6
putrefied(adjective, feature, awful)
6
reprobate(adjective, wrong, evil, violent)
6
sad(dark, awful, terrible, gloomy)
6
septic(adjective, feature, awful, unclean)
6
turbulent(adjective, violent, wild, dirty)
5
adverse(feature, awful, disgusting, vile)
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APASmart Define. (2016). foul thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/foul/thesaurus/synonyms
ChicagoSmart Define. 2016. "foul thesaurus" https://smartdefine.org/foul/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, foul thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/foul/thesaurus/synonyms>.
MLASmart Define. "foul thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/foul/thesaurus/synonyms>