apropos Meaning, Definition & Usage

  1. adjective of an appropriate or pertinent nature
  2. adverb at an opportune time
    timely; seasonably; well-timed.
    • your letter arrived apropos
  3. adverb introducing a different topic; in point of fact
    by the bye; incidentally; by the way.
    • incidentally, I won't go to the party

WordNet