proficient (
http://definr.com/proficient)
adj : having or showing knowledge and skill and aptitude; "adept
in handicrafts"; "an adept juggler"; "an expert job";
"a good mechanic"; "a practiced marksman"; "a
proficient engineer"; "a lesser-known but no less
skillful composer"; "the effect was achieved by
skillful retouching" [syn:
adept,
expert,
good,
practiced,
skillful,
skilful]