Proficient

1.

(Highly competent, skilled) ដែលប៉ិនប្រសប់
Example: A proficient driver.

2.

(បច្ចេកទេស) ជំនាញ ដែលប៊ុនប្រសប់

1.

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.

1.

Well advanced in any branch of knowledge or skill; possessed of considerable acquirements; well-skilled; versed;

1.

able, accomplished, adept, clever, competent, cunning, expert, ingenious, practiced, skilled, skillful, versed

1.

awkward, bungling, clumsy, inexpert, untrained