Adult and Youngest

Opposite meaning words

Adult adjective - Relating to or typical of adults; displaying proper maturity.

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Youngest is an antonym for adult.

Definitions of Adult not found.

Adult is an antonym for youngest in immature topic.

The youngest member of a traditional Indian family, Kankoo is a young adult woman, cute as a button and mute.

Source: Cute Mute
Youngest Child Wins: Nausicaä is the youngest of twelve children, and is the only one that lived long enough to become an adult.

Source: Manga / Nausicaä of the Valley of the Wind
Rika from Higurashi no Naku Koro ni is at youngest 9 and at oldest 12 but can put on an incredibly adult voice when she wants to.

Source: Vocal Dissonance

Cite this Source

Youngest and Adult. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/adult/youngest

Adult & Youngest. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/adult/youngest>.

Youngest or Adult. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/adult/youngest.

Google Ngram Viewer shows how "adult" and "youngest" have occurred on timeline