One time and On time

Opposite meaning terms

One time adverb - On one occasion.

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On time is an antonym for one time in topics: former, olden.

On time adverb - At the expected time.

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One time is an antonym for on time.

Cite this Source

On time and One time. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/one_time/on_time

One time & On time. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/one_time/on_time>.

On time or One time. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/one_time/on_time.

Google Ngram Viewer shows how "one time" and "on time" have occurred on timeline