Definitions

one-off

Part of Speech:

All (2) Noun (1) Adjective (1)

Jump To:

thing occurring only once n.
occurring only once adj.

NOUN

thing occurring only once

Synonyms

STRONGEST

exception one-shot deal one-time thing singularity special case standalone

STRONG

anomaly departure deviation peculiarity

WEAK

aberration abnormality outlier

ADJECTIVE

occurring only once

Synonyms

STRONGEST

exceptional isolated nonce one-of-a-kind one-shot one-time peculiar single singular sole solitary standalone sui generis unique unrepeated

STRONG

anomalous special unparalleled

WEAK

aberrant abnormal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

one-off

Before the Ashes next summer, England face Australia in the one-off 150th anniversary Test in Melbourne in March.

From BBC ● Nov. 1, 2026

“Here you’d have a one-off, inexpensive, readily scalable, safe intervention that people don’t even have to take every day, let alone a lifestyle regimen you have to adhere to for decades.”

From Slate ● Nov. 1, 2026

Earnings in the quarter were hit by one-off costs of 7.8 billion euros related to the previously flagged impairments and costs related to the planned sale of its Osnabrück plant.

From The Wall Street Journal ● Oct. 29, 2026

The store would bring each day’s packages to American Messenger’s office, where they would be combined for delivery with those of one-off customers paying higher rates.

From The Wall Street Journal ● Oct. 23, 2026

The Ministry had arranged this one-off connection to the Floo Network to return students quickly and safely to the school.

From "Harry Potter and the Half-Blood Prince" by J.K. Rowling

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