out of one's mind

phrase

variants or less commonly out of one's skull or out of one's gourd or out of one's tree

: mentally unsound

—usually used informally in an exaggerated way

You can't climb up there! Are you out of your mind?

He was bored out of his mind/skull/gourd/tree.

I feel like I'm going out of my mind.

That noise is driving me out of my mind! [=that noise is bothering me very much]

I was out of my mind with worry. = I was going out of my mind with worry [=I was extremely worried]

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for out of one's mind

• aligned
• alined
• assigned
• behind
• combined
• confined
• consigned
• declined
• defined
• designed
• divined
• enshrined