THESAURUS
past master
ace, ancestors, apprentice, architect, artificer, artist, artiste, author, authority, begetter, beginner, builder, conceiver, constructor, crackerjack, craftsman, creator, designer, deviser, discoverer, effector, engenderer, engineer, executor, executrix, father, first-rater, founder, generator, genius, good hand, great, grower, inaugurator, industrialist, initiator, instigator, institutor, introducer, inventor, journeyman, magician, mahatma, maker, man of genius, manufacturer, master, master craftsman, master hand, mastermind, mother, organizer, originator, planner, practiced hand, precursor, prime mover, prodigy, producer, professional, proficient, raiser, realizer, sage, shaper, sire, skilled hand, smith, star, superstar, topnotcher, virtuoso, whiz, wizard, wright
ROGET THESAURUS
past master
Proficient
N
proficient, expert, adept, dab, dabster, crackerjack, connoisseur, master, master hand, prima donna, first fiddle, top gun, chef de cuisine, top sawyer, protagonist,
past master, mahatma, picked man, medallist, prizeman, veteran, old stager, old campaigner, old soldier, old file, old hand, man of business, man of the world, nice hand, good hand, clean hand, practiced hand, experienced eye, experienced hand, marksman, good shot, dead shot, crack shot, ropedancer, funambulist, acrobat, cunning man, conjuror, wizard, genius, mastermind, master head, master spirit, cunning blade, sharp blade, sharp fellow, jobber, cracksman, politician, tactician, strategist, pantologist, admirable Crichton, Jack of all trades, prodigy of learning.