underage
adj.adj. describing someone who is too young to legally do something, like drinking alcohol or voting. It usually means the person is younger than 18 or 21.
adj. relating to a person who has not yet reached the legal age for a specific activity or responsibility. Typically used attributively before a noun.
The shop was fined for selling alcohol to underage customers.
The coach was careful to check IDs to ensure no underage players were participating in the senior tournament.
Legislators are debating stricter penalties for social media platforms that fail to prevent underage users from accessing restricted content without parental consent.
From under- + age.
From under + -age.
Primarily used attributively before a noun; less common in predicative positions.
he is underagedhe is underageLearners often add an '-ed' suffix by analogy with other adjectives, but 'underage' is the standard form.