one-off

American  

adjective

1. done, occurring, or made only once; one-shot.

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noun

1. something occurring, done, or made only once.

one-off British  

noun

1. Also: one-shot. 

   1. something that is carried out or made only once

   2. ( as modifier )

      a one-off job

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Etymology

Origin of one-off

First recorded in 1935–40

Example Sentences

See Examples For:

one-off

The winter includes trips to South Africa and Bangladesh, and a one-off pink-ball shootout against Australia.

From BBC ● Aug. 18, 2026

Even without a big helping hand from some one-off factors like privately held AI company markups and tariff refunds, that’s unprecedented outside of a postrecession rebound.

From The Wall Street Journal ● Aug. 14, 2026

Wright, who took over the top post in May, called out “quality degradation” and an overreliance on one-off promotions.

From MarketWatch ● Aug. 8, 2026

But because the payments are essentially one-off bailouts, the hospital can’t rely on those funds going forward.

From Los Angeles Times ● Aug. 6, 2026

The paper giant I maybe could have ignored as a one-off freaky occurrence in a freaky place with freaky creatures.

From "Tristan Strong Punches a Hole in the Sky" by Kwame Mbalia