SUB-ADULT

Intermediate 📱 Gen-Z / Internet Slang

Definition

A person aged 18-24 who's legally classified as an adult but whose survival skills suggest they'd be completely lost without parental intervention; technically grown, practically helpless.

Example Usage

My sub-adult brother called asking how long to boil water for pasta.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=SUB-ADULT&defid=13781500)