certain event

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|probability theory}} An [[event]] that [[contain]]s all of the [[possible]] [[outcome]]s and thus is known [[a priori]] to be [[certain]] to [[occur]];<br>{{lb|en|more formally}} the [[entire]] [[sample space]] (which by definition has [[measure]] 1 and [[probability]] 1); said sample space with the exclusion of, at most, a set of measure 0 (thus retaining measure 1).

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