10
overrun(verb, adjective)
8
plagued(verb, adjective, overrun)
8
diseased(adjective, dirty, polluted, soiled, contaminated)
7
jammed
7
ravaged(verb, full of vermin)
6
beset(verb, adjective, overrun)
5
swarming
5
crowded(verb, adjective, overrun)
5
harassed
4
harried
3
infected(adjective, dirty, ill, polluted, soiled)
3
infest
3
invaded
3
lousy(adjective, bad, foul, decayed, stinking)
3
malodorous(adjective, foul, stinking, smelly, foul-smelling)
3
sickly
3
teeming
3
troubled
2
annoyed
2
unwashed
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APASmart Define. (2015). infested thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/infested/thesaurus/synonyms
ChicagoSmart Define. 2015. "infested thesaurus" https://smartdefine.org/infested/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, infested thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/infested/thesaurus/synonyms>.
MLASmart Define. "infested thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/infested/thesaurus/synonyms>