greenhorn
noun
[ ˈɡriːnhɔːn ]
• a person who is new to or inexperienced at a particular activity.
• "I'm not a seasoned veteran, but I'm no greenhorn either"
Similar:
novice,
beginner,
starter,
tyro,
neophyte,
new recruit,
raw recruit,
fledgling,
new boy/girl,
novitiate,
trainee,
learner,
student,
pupil,
mentee,
probationer,
tenderfoot,
rookie,
new kid (on the block),
newie,
newbie,
punk,