11
purulence
10
decayed(adjective, corrupt, infected, decaying, weeping)
8
pus
8
rotten(adjective, decayed, decaying, disintegrated, mildewed)
8
putrid(adjective, corrupt, unclean, decayed, infected)
8
sanies
8
suppuration
7
ichor
7
foul(adjective, unclean)
6
fester
6
maturation
6
spoiled(adjective, disintegrated)
5
decomposed(adjective, disintegrated)
5
rotting(adjective, corrupt, disgusting, stale, decayed)
4
dirty(adjective, unclean, mildewed)
4
gangrenous(adjective, disintegrated)
4
putrefied(adjective, disintegrated)
4
rankling
4
septic(adjective, tender, unclean, swollen, reddened)
4
suppurating
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APASmart Define. (2015). festering thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/festering/thesaurus/synonyms
ChicagoSmart Define. 2015. "festering thesaurus" https://smartdefine.org/festering/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, festering thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/festering/thesaurus/synonyms>.
MLASmart Define. "festering thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/festering/thesaurus/synonyms>