Indefinite and Sure

Opposite meaning words

Indefinite adjective - Not seen or understood clearly.

Usage example: through the dense fog we could just barely discern the indefinite form of another boat

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Sure is an antonym for indefinite in ambiguous topic.

Nearby Words: indefinable, indefinitely

Sure adjective - Having or showing a mind free from doubt.

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Indefinite is an antonym for sure in topics: certain, inevitable, self-confident, physically stable.

Nearby Word: surely

Cite this Source

Sure and Indefinite. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/indefinite/sure

Indefinite & Sure. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/indefinite/sure>.

Sure or Indefinite. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/indefinite/sure.

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