What does the word callow mean?

Usage examples for callow

  1. With bird nicknames may be mentioned Callow, unfledged, cognate with Lat. – The Romance of Names by Ernest Weekley
  2. Both of the callow youth of fifteen and the man of the world of forty- five swear by the woman of thirty. – Hints for Lovers by Arnold Haultain
  3. The old man mumbled something about his daughter- in- law, while his callow son looked, if possible, more sheepish than at first. – On the Heels of De Wet by The Intelligence Officer