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

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Example Sentences

Recent Examples of Synonyms for went off the deep end
Phrase
  • The numbers are consistent with the depressed transit levels recorded over recent days since negotiations fell apart.
    Sophia Saifi, CNN Money, 16 July 2026
  • Gorman’s handshake deal to buy UBS’s US wealth business fell apart in 2008.
    Liz Hoffman, semafor.com, 16 July 2026
Phrase
  • 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
  • My father, who had been flying under fire without complaint, lost it.
    Mahsa Alimardani, Time, 6 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.

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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 17 Jul. 2026.

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