adept

[1]	ace , champion , sensation , maven , mavin , virtuoso , genius , hotshot , star , superstar , whiz , whizz , wizard , wiz
[2]	expert , master , specialist , authority , (Colloq) dab hand , old hand

adj.

[1]	versed , proficient , skilled , well-skilled , expert , accomplished , skilful/(US) skillful , adroit , dexterous/dextrous , able , masterful , masterly , polished
[2]	expert , good , practiced , proficient , skillful , skilful