inexperienced
ˌɪnɛkˈspɪərɪənst , ˌɪnɪkˈspɪərɪənst
adjective
having little knowledge or experience of a particular thing.
an inexperienced driver
synonyms
inexpert · unpractised · lacking experience · untrained · untutored · unschooled · unqualified · unskilled · amateur · uninitiated · uninformed · ignorant · unacquainted · unversed · unfledged · untried · unseasoned · naive · unsophisticated · callow · immature · fresh · green · raw · wet behind the ears · wide-eyed · out of one's depth · born yesterday