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3. out of mind

out of mind

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*out of one's mind

 and *out of one's head; *out of one's senses

Fig. to be silly and senseless; to be crazy and irrational. (*Typically: be ~; go ~.) Why did you do that? You must be out of your mind! Don't drive so fast, Tom! You have to be out of your head!

See also: mind, of, out

out of your mind

crazy You'd have to be out of your mind to reject an offer like that. Blanche thought she was going out of her mind.

Usage notes: often followed by with: We were out of our minds with fear.

Opposite of: in your right mind

See also: mind, of, out