went off the deep end

phrase

past tense of go off the deep end
as in cracked
to yield to mental or emotional stress After months of pressure at work, he went off the deep end.

Synonyms & Similar Words

Relevance

Example Sentences

Recent Examples of Synonyms for went off the deep end
Phrase
  • Five years ago, a Super League proposed by several of Europe’s biggest clubs fell apart in a matter of days after fan protests, political pressure and objections from others around the sport.
    Justin Birnbaum, Sportico.com, 30 July 2026
  • But the battle for the Jeweled Shillelagh won't take place in 2026 after negotiations between the two sides fell apart.
    Ian Miller OutKick, FOXNews.com, 29 July 2026
Phrase
  • The Louisiana State University alum came into the round ahead by two strokes but quickly lost it and went birdie-free for the final 12 holes.
    Jacob Lev, CNN Money, 19 July 2026
  • Nearly all Chinese model providers gained market share on the platform since January, while all US companies lost it.
    Rachyl Jones, semafor.com, 8 July 2026
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.

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Went off the deep end.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/went%20off%20the%20deep%20end. Accessed 1 Aug. 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