Once and Whenever

Once

Once adjective - Having been such at some previous time.

Whenever is an antonym for once in when topic.

Whenever

Definitions of Once not found.

Once is an antonym for whenever.

Both words in one sentence

  • As noted in Darrel Huff's famous book, How to Lie with Statistics, a bunch of islanders once noticed that whenever they were sick, they didn't have lice, whereas whenever they were healthy, they did.
  • There Is No Try And having done it once, he can do it whenever he wants - For the rest of the series, he thus has access to an ability that usually qualifies one as an Auror.
  • Red Alert UFO. SID (Space Intruder Detector), SHADO Control and Moonbase all call them whenever a UFO is detected, so it happens on an average of once per episode.
    Source: Red Alert
Cite this Source
Whenever and Once. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/once/whenever
Once & Whenever. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/once/whenever>.
Whenever or Once. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/once/whenever.


Google Ngram Viewer shows how "once" and "whenever" have occurred on timeline