Original and Underivative

Original

Original adjective - Being or productive of something fresh and unusual; or being as first made or thought of.
Usage example: a truly original approach

Underivative and original are semantically related in earliest topic. In some cases you can use "Underivative" instead an adjective "Original".

Underivative

Underivative adjective - Not derivative or imitative.
Usage example: a natural underivative poet

Original and underivative are semantically related in basic topic. You can use "Original" instead an adjective "Underivative".
Cite this Source
Underivative and Original. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/original/underivative
Original & Underivative. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/original/underivative>.
Underivative or Original. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/original/underivative.
Google Ngram Viewer shows how "original" and "underivative" have occurred on timeline