24 entries under foul topic. ×

17
unhealthy(adjective, health, offensive, disgusting)
14
unwholesome(adjective, health, offensive, unpleasant)
13
noxious(adjective, offensive, unpleasant, disgusting)
11
unhealthful(adjective, offensive, disgusting, harmful)
10
harmful(adjective, offensive, unpleasant, disgusting)
8
deleterious(adjective, offensive, disgusting, harmful)
8
injurious(adjective, offensive, disgusting, harmful)
8
noisome(adjective, bad, offensive, disgusting)
7
pernicious(adjective, offensive, disgusting, harmful)
6
baneful(adjective, offensive, disgusting, harmful)
6
poisonous(adjective, offensive, disgusting, unhealthy)
6
sickly(adjective, offensive, disgusting, harmful)
5
pestiferous(offensive, disgusting, harmful, poisonous)
4
disgusting(adjective, offensive, unclean, overpowering)
4
hurtful(adjective, offensive, disgusting, harmful)
2
dangerous(adjective, offensive, disgusting, harmful)
2
deadly(adjective, offensive, disgusting, unhealthy)
2
fetid(adjective, offensive, disgusting, unclean)
2
pestilential(offensive, disgusting, harmful, poisonous)
2
putrid(adjective, offensive, disgusting, unclean)
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APASmart Define. (2015). insalubrious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/insalubrious/thesaurus/synonyms
ChicagoSmart Define. 2015. "insalubrious thesaurus" https://smartdefine.org/insalubrious/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, insalubrious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/insalubrious/thesaurus/synonyms>.
MLASmart Define. "insalubrious thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/insalubrious/thesaurus/synonyms>