bipolar disorder

noun

: any of several psychological disorders of mood characterized usually by alternating episodes of depression and mania

called also bipolar illness, manic depression

Examples of bipolar disorder 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.
Genetic screening for conditions like bipolar disorder and kidney disease reveals inherited risks, but no test reliably predicts genetic age. Michal Ruprecht, CNN Money, 29 Jan. 2026 Virginia Woolf, played by Nicole Kidman (who won an Oscar for her performance), is working on the novel while struggling with what is now known as bipolar disorder. Mike Barnes, HollywoodReporter, 29 Jan. 2026 Neuropathologist Bennet Omalu, speaking generally about the progression of neurological issues and not specifically about Ye, says that a frontal lobe injury can lead to bipolar disorder. Anna Peele, Vanity Fair, 27 Jan. 2026 His split from Kardashian came years after his bipolar disorder diagnosis, in 2021. Mekishana Pierre, Entertainment Weekly, 27 Jan. 2026 See All Example Sentences for bipolar disorder

Word History

First Known Use

1972, in the meaning defined above

Time Traveler
The first known use of bipolar disorder was in 1972

Browse Nearby Words

Cite this Entry

“Bipolar disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bipolar%20disorder. Accessed 31 Jan. 2026.

Kids Definition

bipolar disorder

noun
: any of several psychological disorders of mood characterized by alternating episodes of depression and mania

Medical Definition

bipolar disorder

noun
: any of several mood disorders characterized usually by alternating episodes of depression and mania

Note: The mania experienced in bipolar disorder may be of the euphoric or irritable type or both.

called also bipolar affective disorder, bipolar illness, manic depression, manic-depressive illness

compare major depressive disorder

More from Merriam-Webster on bipolar disorder

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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