11
unsanitary(adjective, foul, unclean, harmful, polluted)
9
unhealthful(adjective, foul, unclean, harmful, polluted)
7
foul(adjective, dirty, unclean, polluted, contaminated)
7
insalubrious(adjective, harmful, injurious, detrimental)
7
unhealthy(adjective, foul, unclean, harmful, polluted)
6
unhygienic(adjective, dirty, foul, unclean, harmful)
6
unwholesome(adjective, harmful, injurious, detrimental, unsanitary)
5
noxious(adjective, harmful, injurious, detrimental)
5
polluted(adjective, dirty, foul, unclean, contaminated)
4
dirty(adjective, foul, unclean, polluted, contaminated)
4
harmful(adjective, injurious, detrimental)
4
injurious(adjective, harmful, detrimental)
4
noisome(adjective, harmful, injurious, detrimental)
4
sordid
4
unclean(adjective, dirty, foul, polluted, contaminated)
2
contaminated(adjective, dirty, foul, unclean, polluted)
2
damaging(adjective, harmful, injurious, detrimental)
2
detrimental(adjective, harmful, injurious)
2
filthy
2
tainted(adjective, dirty, contaminated)
11 years ago|5.7k views|share |citing 
APASmart Define. (2015). insanitary thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/insanitary/thesaurus/synonyms
ChicagoSmart Define. 2015. "insanitary thesaurus" https://smartdefine.org/insanitary/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, insanitary thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/insanitary/thesaurus/synonyms>.
MLASmart Define. "insanitary thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/insanitary/thesaurus/synonyms>