suicidal ideation

noun

: the act of thinking about or a state of preoccupation with ending one's own life : the act of considering or planning suicide
He had been hospitalized several times for depression and suicidal ideation: the previous summer he had checked himself into a hospital in Laramie.—Melanie Thernstrom
Alleviating gender dysphoria and aligning gender expression with identity through these treatments can lower stress, reduce symptoms of depression and anxiety, and significantly lessen suicidal ideation.—Orion Rummler

Examples of suicidal ideation in a Sentence

Recent Examples on the Web
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Young people who are subjected to or threatened with conversion therapy had nearly three times higher odds of suicidal ideation than those who aren’t. — Theresa Gaffney, STAT, 21 Oct. 2026 These may include anxiety disorders, substance abuse, depression, social isolation, and even suicidal ideation. — Parents, 17 Oct. 2026 Navy officials initially said leadership had not observed an increase in suicidal ideations or attempts aboard the ship. — Mosheh Gains, NBC news, 8 Oct. 2026 Patrick himself admitted to struggling with intense suicidal ideation after the tragic incident. — Ct Jones, Rolling Stone, 21 Sep. 2026 See All Example Sentences for suicidal ideation

Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of suicidal ideation was in 1949

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Cite this Entry

“Suicidal ideation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/suicidal%20ideation. Accessed 24 Oct. 2026.

Medical Definition

suicidal ideation

noun
: the act of thinking about or a state of preoccupation with ending one's own life : the act of considering or planning suicide
Depression appears to be one of the strongest predictors of suicidal ideation but does not appear to distinguish those who have attempted suicide from those who have experienced suicidal ideation without attempts.—E. David Klonsky et al., Annual Review of Clinical Psychology
Burnout among medical students seems to be an important predictor of subsequent suicidal ideation even without symptoms of depression.—Liselotte N. Dyrbye et al., Annals of Internal Medicine
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