Callow means young and lacking any experience. A callow youth, callow and eager, callow recruits.
It is condescending and it is nearly always paired with youth. The origin is unexpectedly literal: the Old English word meant bald, and it was used of unfledged birds without feathers — a callow bird cannot fly yet, and a callow person cannot manage yet.
1adjectivecallowYoung and lacking any experience.
“The callow young officer had never seen a battle.”
synonyms: green, inexperienced
callow is a quality of inexperience.
Old English calu means bald. It was used of unfledged birds, and the sense of inexperience followed.
Proto-Indo-European
*gelH-
Proto-Germanic
*kalwaz — bald; bare, naked
Proto-West Germanic
*kalu
Old English
calu
Middle English
calwe — (adjective) bald; (noun) bald person
English, today
callow
Built from
From Middle English calwe (“(adjective) bald; (noun) bald person”), from Old English calu, caluw (“without hair, bald, callow”), from Proto-West Germanic kalu, from Proto-Germanic kalwaz (“bald; bare, naked”), and then either:
Etymology from Wiktionary, CC BY-SA
Practised in A Song of Ice and Fire