Undefined and Undetermined

Undefined

Undefined adjective - Not seen or understood clearly.
Usage example: plagued by undefined worries that kept her awake at night

Undetermined is a synonym for undefined in uncertain topic. In some cases you can use "Undetermined" instead an adjective "Undefined", when it comes to topics like unspecified. popular alternative

Undetermined

Undetermined adjective - Not seen or understood clearly.
Usage example: an undetermined form seen only from a distance

Undefined is a synonym for undetermined in uncertain topic. You can use "Undefined" instead an adjective "Undetermined". popular alternative

Nearby Word: undeterminable
Cite this Source
Undetermined and Undefined. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/undefined/undetermined
Undefined & Undetermined. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/undefined/undetermined>.
Undetermined or Undefined. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/undefined/undetermined.
Google Ngram Viewer shows how "undefined" and "undetermined" have occurred on timeline