English to English

adjective (a)

• operating or moving or allowing movement in one direction only

  operasi atau bergerak atau memungkinkan pergerakan di satu arah sahaja

  Example:
  A unidirectional flow.
  A unidirectional antenna.
  A unidirectional approach to a problem.
  

  Antonym:
  bidirectional
  

  source: wordnet30