festering

Word family

• fester
  verbC1
• festered
  adjectiveC2

Synonym discussion

Sense: adjective/2

All four words describe a negative emotion that becomes stronger over time, but they differ in intensity and hiddenness. 'Festering' (the most specific) implies that the feeling is not being dealt with and is getting worse because of neglect, like an untreated wound. 'Simmering' suggests anger that is just below the boiling point — it could explode at any moment, like a pot about to boil over. 'Smouldering' describes a feeling that burns slowly and quietly inside, often hidden from others, like a fire under ashes that may suddenly burst into flames. 'Growing' is the most neutral and general; it simply means increasing in strength without any implication of hidden danger. For example: 'Her festering resentment had built up over years of being ignored'; 'The simmering anger in the room made everyone tense'; 'He felt a smouldering hatred toward the person who betrayed him'; 'A growing sense of dissatisfaction spread among the staff.'

Common collocations

Etymology

The word 'fester' comes from the Old French 'festre', meaning an ulcer or a sore. This French word traces back to the Latin 'fistula', which literally means a pipe or tube, but in medical Latin came to refer to a long, narrow ulcer. The verb form developed in late Middle English (around the 1300s), first describing physical wounds that become infected. By the 1600s, English writers had extended the word to describe bad feelings or situations that worsen over time, using the physical image of an untreated wound to capture how emotional pain can grow when ignored.