For certain and Indefinite

Opposite meaning terms

For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').

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Indefinite adjective - Being or seeming to be without limits.

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For certain is an antonym for indefinite.

Nearby Words: indefinable, indefinitely

Cite this Source

Indefinite and For certain. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/for_certain/indefinite

For certain & Indefinite. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/for_certain/indefinite>.

Indefinite or For certain. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/for_certain/indefinite.

Google Ngram Viewer shows how "for certain" and "indefinite" have occurred on timeline