a raw, inexperienced person; novice.

a newcomer to the ranching and mining regions of the western U.S., unused to hardships.

one in the lowest rank of the Boy Scouts of America or Girl Scouts of America.

noun

amateur , beginner , colt * , greenhorn * , johnny-come-lately , neophyte , new kid on the block * , novice , novitiate , rookie , tyro , abecedarian , fledgling , freshman , greenhorn , initiate