IPA: /nɒnˈædʌlt/
KK: /nɑnˈædʌlt/
Referring to someone or something that is not fully grown or developed, typically used to describe children or minors.
The nonadult members of the group were not allowed to participate in the event.
A person who is not yet an adult, typically a child or teenager.
The camp is designed for nonadults to learn new skills and make friends.
Nonadult → It is formed from "non-" (meaning not) and "adult" (from Latin "adultus", meaning grown or mature). The word "nonadult" means not an adult or not fully grown.
Think of 'non-' meaning 'not' and 'adult' meaning 'grown' — so nonadult refers to someone who is not fully grown.