in right mind


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in (one's) right mind

Thinking soundly; rational. Usually used to set up a context in which any sane person would or could do, say, or think a certain thing. No one in their right mind agrees to those kind of terms—unless they sign a contract without reading it. You must not be in your right mind if you think that breaking up their wedding is a good idea.
See also: mind, right
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

in one's right mind

Fig. sane; rational and sensible. (Often in the negative.) That was a stupid thing to do. You're not in your right mind. You can't be in your right mind! That sounds crazy!
See also: mind, right
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

in one's right mind

In a healthy mental state; sane and rational. For example, No one in his right mind would ski down this icy slope. This expression is often used in a negative construction, as in the example. The positive sense appears in the New Testament (Mark 5:15), where a deranged man whom Jesus helped is now "sitting, and clothed, and in his right mind." The antonym out of one's mind, as in You must be out of your mind to swim in that icy stream, is from the same period. [c. 1600] Also see go out of one's mind.
See also: mind, right
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

in one's right mind

Sane. This expression, today usually used in a negative way—“no one in his right mind would . . .”—appears in the Bible in the Gospel of Mark (5:15), in which Jesus has helped a man who was deranged: “And they . . . see him that was possessed with the devil . . . sitting, and clothed, and in his right mind.”
See also: mind, right
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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