out of one's mind

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out of one's mind

1. (idiomatic) Insane, crazy.

   You're out of your mind if you think you can jump that far.

   • 1953, Samuel Beckett, Watt, Olympia Press:

     Or was Erskine out of his mind? And he himself Watt was he not perhaps slightly deranged? And Mr. Knott himself, was he quite right in his head?

2. (idiomatic) Temporarily mentally unstable; very distressed.

   When you didn't phone home, we were out of our minds with worry.

• (crazy): off one's head, out of one's box, out of one's cotton-picking mind, out of one's gourd, out of one's head, out of one's skull, out of one's wits, out there
• See also Thesaurus:insane.

• (temporarily distressed): in one's right mind
• See also Thesaurus:sane.

• wrongminded
• (crazy, temporarily distressed): lose one's mind