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 complaint says church officials knew Marroquin was communicating inappropriately with underage girls. — Brian Maass, CBS News, 8 Sep. 2026

The Twilight alum went on to praise Hansen’s pivotal role on the wildly popular program, which exposed alleged pedophiles by using hidden cameras to capture adults trying to meet underage teens in online chat rooms. — Shania Russell, Entertainment Weekly, 7 Sep. 2026

Bridgers proffers the second of the film’s most impressive transformations when Del is occasionally pressed into service to perform as an underage boy — changing her body language, her gait and, again, her voice. — Jessica Kiang, Variety, 5 Sep. 2026

The investigation, according to the release, further revealed that Myers herself has not had a valid driver’s license since July and on previous occasions allegedly let her underage children drive without a license. — Samira Asma-Sadeque, PEOPLE, 1 Sep. 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