121 entries under bad topic. ×

10
mephitic(adjective, help, evil, offensive)
9
malign(adjective, mean, evil, nasty)
8
foul(adjective, taste, offensive, awful)
7
pestilential(adjective, foul, harmful, injurious)
7
poison(adjective, help, evil, offensive)
6
damaging(adjective, evil, offensive, cruel)
6
mischievous(adjective, mean, evil, nasty)
6
ruinous(adjective, distressing, harmful, injurious)
5
bitter(adjective, mean, nasty, hateful)
5
icky(adjective, nasty, offensive, awful)
5
pestiferous(adjective, offensive, foul, disgusting)
4
nauseating(adjective, taste, offensive, awful)
4
obnoxious(adjective, taste, nasty, offensive)
4
rotten(adjective, nasty, violent, heavy)
4
sickening(adjective, taste, offensive, awful)
4
yucky(adjective, nasty, offensive, awful)
3
abhorrent(adjective, taste, nasty, awful)
3
horrid(adjective, taste, offensive, awful)
3
malodorous(adjective, offensive, heavy, foul)
3
repulsive(adjective, nasty, offensive, awful)
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APASmart Define. (2015). poisonous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/poisonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "poisonous thesaurus" https://smartdefine.org/poisonous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, poisonous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/poisonous/thesaurus/synonyms>.
MLASmart Define. "poisonous thesaurus" 19 August 2015. Web. 28 September 2026. <https://smartdefine.org/poisonous/thesaurus/synonyms>