1. to feel very angry but try not to show it
2. to bubble and foam as if boiling

Examples

• She was seething with anger after the unfair decision.
• He sat quietly seething during the entire meeting.
• The ocean was seething with white foam during the storm.
• The crowd was seething with excitement before the concert.
• Water seethed around the rocks at the base of the waterfall.
• I could see him seething beneath his calm exterior.
• The pot of soup was seething on the stove.