Synonyms|188Antonyms|29|Broader|0Narrower|0Related|253
15
toxic(adjective, unhealthy, unclean, poisonous, insalubrity)
12
infected(adjective, tender, unhealthy, swollen, reddened)
10
noxious(adjective, unhealthy, insalubrity)
10
poisonous(adjective, unhealthy, harmful, insalubrity)
9
unsanitary(adjective, unhealthy, unclean)
8
putrid(adjective, unclean)
8
unwholesome(adjective, unhealthy, unhealthful, insalubrity)
8
virulent(adjective, poisonous, lethal, insalubrity)
7
insalubrious(adjective, unhealthy, unclean, unwholesome, insalubrity)
7
unhealthy(adjective, unhealthy, insalubrity)
6
contaminated(adjective, unhealthy)
6
foul(adjective, unclean)
6
infectious(adjective, unclean)
6
putrefactive
5
deadly(adjective, unhealthy)
5
festering(adjective, tender, unclean, swollen, reddened)
5
gangrenous(adjective, unhealthy)
5
infective
5
rotten
4
diseased(adjective, unhealthy)
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APASmart Define. (2015). septic thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/septic/thesaurus/synonyms
ChicagoSmart Define. 2015. "septic thesaurus" https://smartdefine.org/septic/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, septic thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/septic/thesaurus/synonyms>.
MLASmart Define. "septic thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/septic/thesaurus/synonyms>