" callowness "

1: as in inexperience, naïveté;

•  Synonyms : 

•  greenness,

•  inexperience,

•  naïveté,

•  rawness,

•  simpleness,

•  unsophistication,

•  benightedness,

•  cluelessness,

•  ignorance,

•  incognizance,

•  innocence,

•  nescience,

•  obliviousness,

•  unawareness,

•  unfamiliarity

•  Antonyms : 

•  acquaintance,

•  awareness,

•  cognizance,

•  familiarity,

•  experience,

•  know-how,

•  sophistication

1: lacking in adult experience or maturity;

  * e.g., " ... a story about a callow youth who learns the value of hard work and self-reliance "

•  Synonyms : 

•  adolescent,

•  green,

•  immature,

•  inexperienced,

•  juvenile,

•  puerile,

•  raw,

•  unfledged,

•  unformed,

•  unripe,

•  unripened

•  Antonyms : 

•  adult,

•  experienced,

•  grown-up,

•  mature,

•  ripe