out of one's mind

idiom

: not sane : crazy
What a ridiculous idea! You must be out of your mind to believe that.

Dictionary Entries Near out of one's mind

Cite this Entry

“Out of one's mind.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/out%20of%20one%27s%20mind. Accessed 7 Dec. 2022.

More from Merriam-Webster on out of one's mind

Love words? Need even more definitions?

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


Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ