mood swing

noun

: a very noticeable change in mood
It's hard to relate to someone who has such wild/extreme mood swings.

Examples of mood swing in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
If there’s a major mood swing, our desire to sit on our hands may change. Zev Fima, CNBC, 10 Mar. 2026 The moon’s clash with Jupiter is a confidence booster, but don’t be shocked by a mid-day mood swing. Usa Today, USA Today, 2 Apr. 2026 The cultural mood swing signals a larger trend Maron touches on briefly in his special. Hershal Pandya, Vulture, 22 Aug. 2025 The aircrafty switches are still there, underneath that screen, but are now more aircraft-like than aircraft-style, a sort of mood swing from the previous generations. New Atlas, 7 Sep. 2025 See All Example Sentences for mood swing

Browse Nearby Words

Cite this Entry

“Mood swing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mood%20swing. Accessed 8 Jul. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster