ONETIME Synonyms: 75 Similar and Opposite Words

onetime 1 of 2

adjective

ˈwən-ˈtīm

Definition of onetime

as in occasional

happening only once with any luck, that was a onetime mistake

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in former

having been such at some previous time the onetime English teacher now works for a newspaper

Synonyms & Similar Words

Antonyms & Near Antonyms

onetime

2 of 2

adverb

as in formerly

at an earlier or previous time an athlete who onetime competed in marathons on a regular basis

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of onetime

Adjective

Bourke’s onetime Red Mountain neighbor was businessman Viktor Kozeny, according to WSJ. — Wendy Bowman, Robb Report, 27 July 2026 Now the presence of the onetime collaborator with Quincy Jones and Marvin Hamlisch is around for perpetuity, waiting to be musically tickled by anyone strolling past. — Randy McMullen, Mercury News, 23 July 2026

Adverb

Some of the clips show onetime Orbán loyalists venting dissatisfaction with the government. — Isaac Stanley-Becker, The Atlantic, 10 Apr. 2026 The score from The Princess Bride swelled as Reiner’s onetime (or sometimes multiple-time) actors turned to face him and pay their final respects. — Fran Hoepfner, Vulture, 16 Mar. 2026 See All Example Sentences for onetime

Recent Examples of Synonyms for onetime

Adjective

La Liga is a two-horse race, with occasional Atletico Madrid interruptions; Ligue 1 and the Bundesliga are Parisian and Bavarian cakewalks with rare exceptions.

— Chris Weatherspoon, New York Times, 12 Aug. 2026
The kids in The Shards might benefit from an occasional watchful eye, if only their parents weren’t vacationing in Europe indefinitely.

— Rob Haskell, Vogue, 11 Aug. 2026

Definition of occasional

Adjective

With more than 5,000 people aboard, keeping them all unified and focused as one team is difficult in a ship larger than some small towns, said Jennifer Parker, a former Royal Australian Navy officer and nonresident fellow at the Lowy Institute.

— Mustafa Qadri, CNN Money, 14 Aug. 2026
Also running are current board members Jessica Biggs and Jennifer Custer, Chicago Teachers Union political director Hilario Dominguez and former board appointee Sendhil Revuluri.

— Kate Armanini, Chicago Tribune, 14 Aug. 2026

Definition of former

Adverb

To date, Carlos Cordeiro, formerly Infantino’s senior advisor, is the only high-profile official to have quit.

— Aleks Klosok, CNN Money, 8 Aug. 2026
Both men were formerly enslaved and had completed a course of theological training based on the Anglican tradition in Bombay (Mumbai) in preparation for the priesthood.

— Stephanie TriplettAll, Encyclopedia Britannica, 7 Aug. 2026

Definition of formerly

Adjective

The erstwhile New York resident was loudly and vigorously booed by the hometown crowd as he was shown on the jumbotron of the legendary arena.

— Dominic Patten, Deadline, 8 June 2026
Despite his meltdown in Colorado’s extra-inning loss to Milwaukee Friday night, the erstwhile starter has been one of baseball’s best relievers this season.

— Patrick Saunders, Denver Post, 7 June 2026

Definition of erstwhile

Adverb

Universities are breaking the economic bargain that once kept experts in the classroom.

— Francisco Ruiz, Chicago Tribune, 14 Aug. 2026
Democrats see an opportunity to win this cycle in once-competitive Iowa, where high costs, health clinic closures, manufacturing job losses and a struggling agricultural economy weigh on voters.

— ABC News, ABC News, 14 Aug. 2026

Definition of once

Browse Nearby Words

one-sidedness

onetime

one-two

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Style

“Onetime.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/onetime. Accessed 14 Aug. 2026.

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Synonyms of onetime

adjective

adverb

Example Sentences

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