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.
Ye, who has apologised for past remarks and ​said they were linked to untreated bipolar disorder, has continued ‌to perform in countries that have welcomed ⁠him, and is due to hold a concert in Istanbul ⁠later on Saturday. Reuters, NBC news, 30 May 2026 Over the years, doctors reportedly diagnosed him with schizophrenia, bipolar disorder and obsessive-compulsive disorder. Stepheny Price, FOXNews.com, 27 May 2026 Hypomania is a less severe form of mania, and both are commonly part of bipolar disorder. Lance Eliot, Forbes.com, 23 May 2026 Murray was later diagnosed with bipolar disorder and has now retired from acting. Wesley Stenzel, Entertainment Weekly, 23 May 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 1 Jun. 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

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