Immature and Simple

Immature

Immature adjective - Having or showing the annoying qualities (as silliness) associated with children.
Usage example: an immature teenager who still threw tantrums

Simple and immature are semantically related. In some cases you can use "Simple" instead an adjective "Immature".

Nearby Word: immaturity

Simple

Simple adjective - Lacking in worldly wisdom or informed judgment.
Usage example: developers mistakenly thought that the local residents were simple people who would sell their land for practically nothing

Immature and simple are semantically related. Sometimes you can use "Immature" instead an adjective "Simple".

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