pro·fi·cient
(prə-fĭsh′ənt)adj. Having or marked by an advanced degree of competence, as in an art, vocation, profession, or branch of learning.
n. A person who exhibits such competence; an expert.
[Latin prōficiēns, prōficient-, present participle of prōficere, to make progress; see profit.]
pro·fi′cient·ly adv.
Synonyms: proficient, adept, skilled, skillful, accomplished, expert
These adjectives mean having or showing knowledge, ability, or skill, as in a profession or field of study. Proficient implies an advanced degree of competence acquired through training: is proficient in Greek and Latin.
Adept suggests a natural aptitude improved by practice: became adept at cutting the fabric without using a pattern.
Skilled implies sound, thorough competence and often mastery, as in an art, craft, or trade: a skilled gymnast who won an Olympic medal.
Skillful adds to skilled the idea of natural dexterity in performance or achievement: is skillful in the use of the hand loom.
Accomplished bears with it a sense of refinement after much training and practice: an accomplished violinist who played the sonata flawlessly.
Expert applies to one with consummate skill and command: an expert negotiator who struck a deal between disputing factions.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
proficient
(prəˈfɪʃənt) adjhaving great facility (in an art, occupation, etc); skilled
[C16: from Latin prōficere to make progress, from pro-1 + facere to make]
proˈficiency, proˈficience n
proˈficiently adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pro•fi•cient
(prəˈfɪʃ ənt)
adj. 1. fully competent in any art, science, or subject; skilled: a proficient swimmer.
n. 2. an expert.
[1580–90; < Latin prōficient-, s. of prōficiēns, present participle of prōficere to advance, make progress]
pro•fi′cien•cy (-si) n.
pro•fi′cient•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.