Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun youngster
1 sense of youngster
Sense 1
child, kid, youngster, minor, shaver, nipper, small fry, tiddler, tike, tyke, fry, nestling -- (a young person of either sex; "she writes books for children"; "they're just kids"; "`tiddler' is a British term for youngster")
=> juvenile, juvenile person -- (a young person, not fully developed)