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mood swing

American  
[mood swing] / ˈmud ˌswɪŋ /

noun

mood swings plural
  1. a sudden marked shift in mood, especially one not explained by immediate circumstances.


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Noun Inflected Forms

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

It’s a massive mood swing that will reshape Philly’s offseason.

From The Wall Street Journal May 11, 2026

Dare I say, the party’s mood swing from near-suicidal to euphoric has been quite something.

From Los Angeles Times Nov. 23, 2025

The six Kiwi crewmembers shouted, hugged and fist-bumped after crossing the finish line, a massive mood swing from days earlier, when Burling glumly discussed a four-point penalty for colliding with the U.S. catamaran during training.

From Seattle Times Jan. 15, 2023

Dealers were hard pressed to find a single catalyst for the sudden mood swing, but a Chinese crackdown on tech companies clearly had an impact.

From Reuters Jul. 7, 2021

I demanded, confused by his sudden mood swing as much as his words.

From "Twilight" by Stephenie Meyer

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