out of sorts

1. 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]

Example Sentences

Bublik spoke about the importance of holding serve early in the match but, having completed victory over American hopeful Tommy Paul shortly after 1:15am local time on Sunday morning, he instantly looked out of sorts.

From BBC

World number one Sabalenka was out of sorts at the WTA 1,000 event in Cincinnati, playing erratically as she scraped past Emma Raducanu before being outclassed by Elena Rybakina.

From BBC

Sabalenka was out of sorts at the WTA 1000 event in Cincinnati, playing erratically as she scraped past Raducanu before being outclassed by Rybakina.

From BBC

World number one Sinner was out of sorts from the first point of the highly anticipated showpiece, and trailed 5-0 after 23 minutes on another hot day.

From BBC

It’s accompanied by a screenshot of the oft-misguided former school counselor Mackey looking out of sorts in a face mask and ICE vest.

From Los Angeles Times