Grownup
Grownup adjective - (of animals) fully developed.
Prime and grownup are semantically related. in developed topic. In some cases you can use "Prime" instead an adjective "Grownup", when it comes to topics like experienced.
Cite this Source
Prime and Grownup. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/grownup/prime
Grownup & Prime. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/grownup/prime>.
Prime or Grownup. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/grownup/prime.
Google Ngram Viewer shows how "grownup" and "prime" have occurred on timeline