Synonyms of proficient in English:

proficient


See US English definition of proficient

See UK English definition of proficient

See Spanish definition of competente

adjective

1‘a proficient horsewoman’

SYNONYMS
skilled, skilful, expert, accomplished, experienced, practised, trained, seasoned, well versed, adept, adroit, deft, dexterous, able, capable, competent, professional, effective, apt, handy, talented, gifted, masterly, consummate, master
good, great, excellent, brilliant
informal crack, ace, mean, wicked
British informal wizard
North American informal crackerjack, badass
vulgar slang shit-hot
archaic, humorous compleat
ANTONYMS

inept, inexpert, incompetent