5
sickly(adjective, bad, weakness, awful, uncertain)
5
sordid
5
soured
5
stinky(adjective, foul, stale, stinking, smelly)
5
touched(verb, adjective, uncleanness, decayed, decaying)
5
treacherous(adjective, hard, evil, rough, nasty)
5
unscrupulous(adjective, hard, evil, rough, nasty)
5
venal(adjective, low, dishonest, immoral, untrustworthy)
5
vitiated(adjective, evil, disease, dishonest, degenerate)
4
broken(adjective, deterioration, disintegrated)
4
cankered(disease, deterioration)
4
carious(adjective, rank, disagreeable, sour, stale)
4
damnable(adjective, bad, awful, disgusting, hate)
4
disappointing(adjective, quiet, bad, poor, nasty)
4
dishonorable(adjective, hard, evil, rough, nasty)
4
disintegrating(adjective, decayed, decaying)
4
faulty(adjective, bad, weak, poor, false)
4
fecal(adjective, uncleanness, decayed, redolent, putrid)
4
flyblown
4
fraudulent(adjective, deception, dishonest, immoral, untrustworthy)
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APASmart Define. (2016). rotten thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rotten/thesaurus/synonyms
ChicagoSmart Define. 2016. "rotten thesaurus" https://smartdefine.org/rotten/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, rotten thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rotten/thesaurus/synonyms>.
MLASmart Define. "rotten thesaurus" 3 April 2016. Web. 24 September 2026. <https://smartdefine.org/rotten/thesaurus/synonyms>