inexperienced

lacking practical experience or training

• apprentice(a) — in training
• fledgling, unfledged — young and inexperienced
• raw, new, wet behind the ears(p) — lacking training or experience
• uninitiate, uninitiated — not initiated; deficient in relevant experience
• unpracticed, unpractised — not having had extensive practice
• unseasoned, untested, untried — not tried or tested by experience