Immature
Immature adjective - Being in the early stage of life, growth, or development.
Usage example: immature frogs are called “tadpoles”
Subadult and immature are semantically related. In some cases you can use "Subadult" instead an adjective "Immature".
Nearby Word: immaturity
Subadult
Cite this Source
Subadult and Immature. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/immature/subadult
Immature & Subadult. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/immature/subadult>.
Subadult or Immature. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/immature/subadult.
Google Ngram Viewer shows how "immature" and "subadult" have occurred on timeline