Not experienced; lacking knowledge or experience; green.(adjective)
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Use "inexperienced" in a sentence
"These divergent party impulses figure to be even more acute if the Democratic nominee is Sen. Obama, who is widely perceived as inspirational but "inexperienced" -- a code word for not knowing enough about how the big, bad world really works."
"The airplane troubles come as the union of professional engineers that service the Qantas fleet plans its weekend strike to protest what it describes as inexperienced managers filling in on overnight shifts."
"Practising lawyers find it harder to get trained staff and find less time to train inexperienced staff."