What is the meaning of naive?

adjective

• Marked by or showing unaffected simplicity and lack of guile or worldly experience.
  • usage: "a teenager's naive ignorance of life"; "the naive assumption that things can only get better"; "this naive simple creature with wide friendly eyes so eager to believe appearances"
  • synonyms: naif
• Of or created by one without formal training; simple or naive in style.
  • usage: "primitive art such as that by Grandma Moses is often colorful and striking"
  • synonyms: primitive
• Inexperienced.
• Lacking information or instruction.
  • usage: "lamentably unenlightened as to the laws"
  • synonyms: uninstructed, unenlightened
• Not initiated; deficient in relevant experience.
  • usage: "it seemed a bizarre ceremony to uninitiated western eyes"; "he took part in the experiment as a naive subject"
  • synonyms: uninitiate, uninitiated