Synonyms of fester in English:

fester


See definition of fester

verb

1‘the deep wound in his neck festered’

SYNONYMS
suppurate, become septic, form pus, secrete pus, discharge, run, weep, ooze
come to a head
technical maturate, be purulent
rare rankle, apostemate

2‘rubbish festered in the crowded streets’

SYNONYMS
rot, moulder, decay, decompose, putrefy, go bad, go off, perish, spoil, deteriorate, disintegrate, degrade, break down, break up
technical mortify, necrotize
archaic corrupt

3‘we must not allow our resentment to fester’

SYNONYMS
rankle, chafe, gnaw, gnaw at one's mind, eat away at one's mind, ferment, brew, smoulder
cause bitterness, cause resentment, cause vexation, cause annoyance