cal·low 
/ˈkæloʊ/ adjective
cal·low·er; cal·low·est /ˈkæloʊ/ adjective [also more callow; most callow] often disapproving — used to describe a young person who does not have much experience and does not know how to behave the way adults behave ▪ a callow [=immature] youth ▪ training callow [=inexperienced] recruits for the army
— cal·low·ness noun [noncount]
