simmer down
[verb]
Synonyms: calm down, control oneself, cool off or down

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Antonyms: boil over
Contrasted words: boil, seethe, explode, fulminate
Related Idioms: cool it, take it easy
Related Words: quiet (down), subside

[TahlilGaran] English Synonym Dictionary ▲

simmer down phrasal verb (see also simmer)
to become calm again after you have been very angry:
We decided she needed some time to simmer down.

[TahlilGaran] Dictionary of Contemporary English ▲

simmer down
to become calm/quiet
He was very angry after the meeting but now he has begun to simmer down.

[TahlilGaran] English Idioms Dictionary ▲

simmer down
v., informal To become less angry or excited; become calmer.
Tom got mad, but soon simmered down.

[TahlilGaran] English Idioms Dictionary ▲