Clear and Undefined

Opposite meaning words

Clear adjective - Easily seen through.

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Undefined is an antonym for clear in understandable topic.

Nearby Words: clean, cleared, clearly, clearing, clearness

Undefined adjective - Not seen or understood clearly.

Usage example: plagued by undefined worries that kept her awake at night

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Clear is an antonym for undefined in topics: infinite, vague.

Cite this Source

Undefined and Clear. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/clear/undefined

Clear & Undefined. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/clear/undefined>.

Undefined or Clear. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/clear/undefined.

Google Ngram Viewer shows how "clear" and "undefined" have occurred on timeline