IPA: /ˌpriː.æd.əˈlɛs.ənt/
KK: /prɪˈæd.əˌlɛs.ənt/
Relating to the stage of development just before adolescence, typically referring to children aged 9 to 12 years.
The preadolescent children in the program showed great enthusiasm for learning.
A child who is not yet old enough to go through puberty, typically between the ages of 9 and 12.
The preadolescent group participated in various activities designed for their age.
Preadolescent → It is formed from "pre-" (meaning before) and "adolescent" (from Latin "adolescens", meaning growing up or maturing). The word refers to the stage before adolescence, indicating the period before a person reaches the age of maturity.
Think of 'pre-' meaning before and 'adolescent' referring to growing up — so preadolescent describes the time before someone becomes a teenager.