Proficient Definition Webster. The state of progress attained. Well advanced in an art occupation or branch of knowledge Other Words from proficient Synonyms.
Advance in the acquisition of any art science or knowledge. Good at doing something. Proficiency See the full definition.
English Collins Dictionary - English Definition.
How to use proficiency in a sentence. A proficient in mathematics music etc. Well-advanced or competent in any art science or subject. Thesaurus proficient able accomplished adept apt capable clever competent conversant efficient experienced expert gifted masterly qualified skilful skilled talented trained versed.