Adult and Teenager

Opposite meaning words

Adult noun - A fully grown person.

Usage example: at the beach, the adults sat under broad umbrellas while the children splashed in the water

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Teenager is an antonym for adult.

Teenager noun - A juvenile between the onset of puberty and maturity.

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Adult is an antonym for teenager in adolescent topic.

Nearby Word: teenage

human	human adult	human teenager
old	old adult	old teenager
female	female adult	female teenager
nice	nice adult	nice teenager
Other adjectives: normal, short, regular, average, mature, immature, actual, male, grown, little, innocent, attractive, early, angry, random, older, sexy.

Leonardo Withering hears her cursing and guesses that she's an adult or teenager at the moment instead of the five year old she appears to be.

Source: Non-Linear Character
It could be beaten in under an hour by an adult or teenager, but would give the young target audience a decent challenge, and would take them a while.

Source: Sugar Wiki / No Problem with Licensed Games
When Lewis Carroll's heroine from Alice's Adventures in Wonderland is portrayed as a teenager or adult in a work of modern fiction, she is bound to be both this and Hotter and Sexier.

Source: Xenafication

Cite this Source

Teenager and Adult. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/adult/teenager

Adult & Teenager. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/adult/teenager>.

Teenager or Adult. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/adult/teenager.

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