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Synonyms

one-time

American  
[wuhn-tahym] / ˈwʌnˌtaɪm /
Or onetime

adjective

  1. having been as specified at one time; former.

    my one-time partners.

    Synonyms:
    past, previous
  2. occurring, done, or accomplished only once.

    his one-time try at elective office.


one-time British  

adjective

  1. (prenominal) at some time in the past; former

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. informal at once

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of one-time

First recorded in 1880–85

Explanation

Use the adjective one-time to mean "long ago" or "former." For example, a one-time movie star was famous in the past, but might not be recognized today. A one-time chess champion might have won competitions years and years ago. A one-time international spy may have had exciting adventures in her youth, although today she could very well be an unassuming elderly lady. The one-time star of a basketball team isn't anymore, and a one-time dog owner might have switched to keeping cats instead.

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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:

However, most life-insurance companies pay dividends to customers around their individual policy’s anniversary date, rather than a one-time payout to all policyholders at the same time.

From MarketWatch Aug. 18, 2026

Wall Street’s earnings game is making it needlessly hard for investors to tell real growth from one-time gains.

From The Wall Street Journal Aug. 14, 2026

The case has been marked by twists and turns, including a connection to a one-time candidate for California governor.

From Los Angeles Times Aug. 13, 2026

The Foxes have had an eight-page sales booklet produced by a leading US investment bank to help offload the one-time Premier League title winners.

From BBC Aug. 13, 2026

Behind the closed and guarded doors of the SR offices, an SR officer deciphered the message by hand, using a one-time pad.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

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