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

Notably, because the Salon has an age requirement (21 and over, there’s alcohol), parties traveling with those underage are required to book a Private Suite. — Lauren Harano, Condé Nast Traveler, 6 Nov. 2026

Dallas Police Chief Daniel Comeaux insisted underage drinking is a problem that bar owners must address. — CBS News, 6 Nov. 2026

Ouellette, who was 18 at the time, has been accused of running over Ringquist on Fieldview Drive after the couple left an underage drinking party in Terryville on May 20, 2023. — Justin Muszynski, Hartford Courant, 5 Nov. 2026

The government's own research released in March showed 7 in 10 underage children continued to hold accounts on Facebook, Instagram, Snapchat and TikTok since December. — ABC News, 3 Nov. 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