naive

adjective

1. marked by or showing unaffected simplicity and lack of guile or worldly experience"a teenager's naive ignorance of life"
2. of or created by one without formal training; simple or naive in style"primitive art such as that by Grandma Moses is often colorful and striking"
3. inexperienced
4. lacking information or instruction"lamentably unenlightened as to the laws"
5. not initiated; deficient in relevant experience"it seemed a bizarre ceremony to uninitiated western eyes"