IPA: /ˌsʌbˈædʌlt/
KK: /sʌbˈædʌlt/
Referring to an individual that is not yet fully grown or developed into an adult stage.
The subadult animals were still learning how to hunt from their parents.
A person or animal that is not yet fully grown or developed into an adult.
The subadult eagle was still learning to hunt on its own.
Subadult → It is formed from "sub-" (meaning under or below) and "adult" (from Latin "adultus", meaning grown or mature). The word "subadult" refers to an individual that is not yet fully grown or mature, existing in a stage below adulthood.
Think of someone who is 'under' ('sub-') being fully 'grown' ('adult') — that's why subadult refers to someone who is not yet fully mature.