Synonyms of 'festering'
1 venomousDictionary, vicious, smouldering
recrimination and festering resentment
2 septicDictionary, infected, poisonous
afflicted by festering sores
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the smell of decaying bodies is all-pervasive
If part of your body is inflamed, it is red or swollen, usually as a result of an infection, injury, or illness.
Her eyes were sore and inflamed.
Thesaurus for festering from the Collins English Thesaurus