What is the meaning of perplexing?

verb

• Be a mystery or bewildering to.
  • usage: "This beats me"; "Got me-I don't know the answer"; "a vexing problem"; "This question really stuck me"
  • synonyms: perplex, vex, stick, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, stupefy, nonplus, gravel, amaze, dumbfound
• Make more complicated.
  • usage: "There was a new development that complicated the matter"
  • synonyms: complicate, perplex

adjective

• Lacking clarity of meaning; causing confusion or perplexity.
  • usage: "sent confusing signals to Iraq"; "perplexing to someone who knew nothing about it"; "a puzzling statement"
  • synonyms: confusing, puzzling