- 1to be extremely angry about something but try not to show other people how angry you are synonym fume She seethed silently in the corner. seethe with something He marched off, seething with frustration. seethe at something Inwardly he was seething at this challenge to his authority. Inwardly she was seething, and vowed to get back at him. She was seething at the insult. See related entries: Anger
- 2seethe (with something) (formal) (of a place) to be full of a lot of people or animals, especially when they are all moving around The resort is seething with tourists all year round. He became caught up in a seething mass of arms and legs.
- 3(formal) (of liquids) to move around quickly and violently The grey ocean seethed beneath them. Word Origin Old English sēothan ‘make or keep boiling’, of Germanic origin; related to Dutch zieden.
BrE BrE//siːð//; NAmE NAmE//siːð//[intransitive]Verb Forms present simple I / you / we / they seethe
BrE BrE//siːð//; NAmE NAmE//siːð//he / she / it seethes
BrE BrE//siːðz//; NAmE NAmE//siːðz//past simple seethed
BrE BrE//siːðd//; NAmE NAmE//siːðd//past participle seethed
BrE BrE//siːðd//; NAmE NAmE//siːðd//-ing form seething
BrE BrE//ˈsiːðɪŋ//; NAmE NAmE//ˈsiːðɪŋ//Anger