proficient

proficient
    adj 1: 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},
           {proficient}, {skillful}, {skilful}]
    2: of or relating to technique or proficiency in a practical
       skill; "his technical innovation was his brushwork"; "the
       technical dazzle of her dancing" [syn: {technical},
       {proficient}]
    

Proficient \Pro*fi"cient\, n. [L. proficiens, -entis, p. pr. of
   proficere to go forward, make progress; pro forward + facere
   to make. See {Fact}, and cf. {Profit}, (?)]
   One who has made considerable advances in any business, art,
   science, or branch of learning; an expert; an adept; as,
   proficient in a trade; a proficient in mathematics, music,
   etc.
   [1913 Webster]
    

Proficient \Pro*fi"cient\, a.
   Well advanced in any branch of knowledge or skill; possessed
   of considerable acquirements; well-skilled; versed; adept,
   [1913 Webster]
    

108 Moby Thesaurus words for "proficient":
      Daedalian, able, accomplished, ace, adapted, adept, adequate,
      adjusted, adroit, apt, archetypical, artist, artiste, artistic,
      au fait, authoritative, authority, bravura, brilliant, capable,
      checked out, classic, clean, clever, competent, consummate,
      coordinated, crack, crackerjack, cunning, cute, daedal, deft,
      developed, dexterous, dextrous, diplomatic, effective, effectual,
      efficacious, efficient, equal to, excellent, exemplary, exercised,
      experienced, expert, fancy, finished, first-rate, fit, fitted,
      fully developed, gifted, good, goodish, graceful, handy, ingenious,
      knowledgeable, magisterial, master, masterful, masterly, mature,
      matured, model, neat, no mean, past master, perfected, polished,
      politic, practiced, productive, professional, qualified, quick,
      quintessential, quite some, ready, refined, resourceful, ripe,
      ripened, skilled, skillful, slick, some, statesmanlike, stylish,
      suited, tactful, talented, the compleat, the complete, top-notch,
      up to, veteran, virtuoso, well-done, well-fitted, well-qualified,
      well-suited, well-versed, whiz, wizard, workmanlike