not in one's right mind

idiom

: mentally ill
There's something wrong with him. He's not in his right mind.

Dictionary Entries Near not in one's right mind

Cite this Entry

“Not in one's right mind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/not%20in%20one%27s%20right%20mind. Accessed 21 Nov. 2024.

Love words? Need even more definitions?

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