out of sorts

out of sorts idiom
Irritable, grouchy, as in Don't ask him today—he's out of sorts. This expression also implies that one's poor spirits result from feeling slightly ill. [Early 1600s] The synonym out of humor, on the other hand, used more in Britain than America, simply means “ill-tempered” or “irritable.” [Mid-1600s]

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.

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