proficient

/prəˈfɪʃənt/
adjective
  1. Skilled and competent at doing something, often as a result of training or practice.
    • She is proficient in three languages: English, Spanish, and French.
    • After months of practice, he became proficient at playing the guitar.
    • The technician is proficient at repairing computers.
Antonyms
noun
  1. A person who is skilled or expert in a particular activity or subject.
    • The team included several proficients in data analysis.
    • As a proficient in ancient history, she was often consulted by museums.
    • The company hired a proficient to lead the training session.
Antonyms
What does "proficient" mean? | whatsthatwordmean | whatsthatwordmean