underage

adjective

un·​der·​age ˌən-dər-ˈāj 

1

: of less than mature or legal age

2

: done by or involving underage persons

underage drinking

Examples of underage in a Sentence

They were not allowed into the club because they were underage.

Recent Examples on the Web

The underage suspect was booked into Stanislaus County Juvenile Hall on similar charges. — Jessica Baltaxe, CBS News, 13 Aug. 2026

After Josh Duggar allegedly molested several underage girls, including his sisters, claims that surfaced in 2015, their parents reportedly put locks on the doors. — Kevin Dolak, HollywoodReporter, 11 Aug. 2026

The hackers have been targeting adults and underage users by breaking into social media and personal online accounts, according to the FBI’s warning, which was published on Monday. — Michael Kan, PC Magazine, 11 Aug. 2026

The states allege Meta intentionally designed its products to addict kids and repeatedly lied to the public about it, telling parents and politicians its apps were safe for children while mining underage users for valuable data. — Sonja Sharp, Los Angeles Times, 8 Aug. 2026

Word History

First Known Use

1561, in the meaning defined at sense 1

Kids Definition

underage

adjective

un·​der·​age ˌən-də-ˈrāj 

: of less than mature or legal age