It advertised his callowness—a callowness sheer and unutterable.
There is, or ought to be, no such thing, once past the callowness of youth.
The sensation of callowness at once heightened his resolve to succeed.
His smoutchiness generally passes off with the callowness of hobble-de-hoyhood.
He wondered now if he had not borne himself with the Quixotic martyrdom of callow ...