Pellucid and Undefined

Opposite meaning words

Pellucid adjective - Easily seen through.

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Undefined is an antonym for pellucid.

Undefined adjective - Not seen or understood clearly.

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

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Pellucid is an antonym for undefined.

Cite this Source

Undefined and Pellucid. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/pellucid/undefined

Pellucid & Undefined. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/pellucid/undefined>.

Undefined or Pellucid. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/pellucid/undefined.

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