Definition of "callowness" [cal•low•ness]

• The condition of being callow; immaturity. (noun)

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• "In his letters of this period I detect a kind of callowness and affectation which is not discernible in his foreign letters and journal."
• "Maybe it's a sign of my own puerility, but the "callowness" Matos refers to humanized him on"
• "Vincent Gray was elected mayor because he embodied the hopes of the majority of this city for adult leadership after years of immaturity, callowness, and greenness."