experienced

adroit, clever, deft, dexterous (also dextrous), handy, slick, sure-handed

gifted, talented

polished, refined

effective, effectual, efficient, workmanlike

able, capable, competent, employable, fit, fitted, habile, qualified

knowledgeable, schooled, taught, trained, tutored

all-around (also all-round), well-rounded

long-term, old

multiskilled, multitalented

encountered, met

accepted, received

assimilated, digested