B1
having skill or knowledge because you have done something many times
Dictionary examples:
The experienced excuse-maker never ran out of reasons for being late. (0.0)
The experienced procrastinator started his homework just before the bell rang. (0.0)
The experienced chef could cook an omelet with his eyes closed. (0.0)
an experienced teacher (11.5)
She is very experienced in marketing. (30.1)