Primary
Primary adjective - Coming before all others in importance.
Underlying is a synonym for primary in basic topic. In some cases you can use "Underlying" instead an adjective "Primary", when it comes to topics like surface. popular alternative
Underlying
Underlying adjective - Of or relating to the simplest facts or theories of a subject.
Usage example: the underlying differences between democracy and dictatorship
Primary is a synonym for underlying in fundamental topic. You can use "Primary" instead an adjective "Underlying", if it concerns topics such as surface. popular alternative
Mutual synonyms
Related pairs
Cite this Source
Underlying and Primary. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/primary/underlying
Primary & Underlying. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/primary/underlying>.
Underlying or Primary. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/primary/underlying.
Google Ngram Viewer shows how "primary" and "underlying" have occurred on timeline