adverb (r)

• in an expert manner

  ahli dalam cara

  Example:
  He repaired the TV set expertly.
  

  Synonym:
  like an expert
  Antonym:
  amateurishly
  

  source: wordnet30
• In a skillful or dexterous manner; adroitly; with readiness and accuracy.

  dalam satu cara atau terampil tangkas; adroitly; dengan persediaan dan ketepatan.

  source: webster1913