naif
1. [ adjective ] marked by or showing unaffected simplicity and lack of guile or worldly experience
Synonyms: naive
Examples:

"a teenager's naive ignorance of life" "the naive assumption that things can only get better" "this naive simple creature so eager to believe appearances"

Related terms: sophisticated childlike childlike simple-minded fleeceable innocent ignorant unsophisticated credulous unworldly uninformed credulous
Similar spelling:   Naff
  Nappi
  nap
  nab
  navy
  nave
  Nava
  napu
  nape
  napa
  Nabu
  Naab