proficient
//prəˈfɪʃ.ənt//
Adjective
proficientCanonical form
more proficientComparative
most proficientSuperlative
1
Having or showing a high degree of skill or competence in a particular area or activity.
She is proficient in three languages.
2
Well-advanced or expert in any art, science, or subject; skilled.
She is proficient in three languages.