Immature and Mellow

Immature

Immature adjective - Being in the early stage of life, growth, or development.
Usage example: immature frogs are called “tadpoles”

Mellow is an antonym for immature in childish topic.

Nearby Word: immaturity

Mellow

Mellow adjective - Having a pleasantly flowing quality suggestive of music.

Immature is an antonym for mellow in ripe topic.

Cite this Source
Mellow and Immature. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/immature/mellow
Immature & Mellow. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/immature/mellow>.
Mellow or Immature. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/immature/mellow.
Google Ngram Viewer shows how "immature" and "mellow" have occurred on timeline