seething - Wiktionary, the free dictionary Filled with unexpressed anger; in a state of being livid There Grendel was watching his blood flow out into the seething tarn
seething - WordReference. com Dictionary of English seethe sið v [no object], seethed, seeth•ing (of a liquid) to bubble as if boiling to be in a state of excitement or anger: sat there seething after listening to his insults