Undefined and Unstructured

Undefined

Undefined adjective - Not seen or understood clearly.

Unstructured and undefined are semantically related. In some cases you can use "Unstructured" instead an adjective "Undefined".

Unstructured

Unstructured adjective - Having no definite or recognizable form.
Usage example: writes unstructured compositions that some people might not even regard as poems

Undefined and unstructured are semantically related. Sometimes you can use "Undefined" instead an adjective "Unstructured".
Cite this Source
Unstructured and Undefined. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/undefined/unstructured
Undefined & Unstructured. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/undefined/unstructured>.
Unstructured or Undefined. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/undefined/unstructured.
Google Ngram Viewer shows how "undefined" and "unstructured" have occurred on timeline