What is the meaning of vexing?

verb

• Cause annoyance in; disturb, especially by minor irritations.
  • usage: "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"
  • synonyms: annoy, rag, get to, bother, get at, irritate, rile, nark, nettle, gravel, vex, chafe, devil
• Disturb the peace of mind of; afflict with mental agitation or distress.
  • usage: "I cannot sleep-my daughter's health is worrying me"
  • synonyms: worry, vex
• Change the arrangement or position of.
  • synonyms: agitate, vex, disturb, commove, shake up, stir up, raise up
• Subject to prolonged examination, discussion, or deliberation.
  • usage: "vex the subject of the death penalty"
  • synonyms: vex
• 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

adjective

• Extremely annoying or displeasing.
  • usage: "his cavelier curtness of manner was exasperating"; "I've had an exasperating day"; "her infuriating indifference"; "the ceaseless tumult of the jukebox was maddening"
  • synonyms: exasperating, infuriating, maddening
• Causing irritation or annoyance.
  • usage: "tapping an annoying rhythm on his glass with his fork"; "aircraft noise is particularly bothersome near the airport"; "found it galling to have to ask permission"; "an irritating delay"; "nettlesome paperwork"; "a pesky mosquito"; "swarms of pestering gnats"; "a plaguey newfangled safety catch"; "a teasing and persistent thought annoyed him"; "a vexatious child"; "it is vexing to have to admit you are wrong"
  • synonyms: annoying, bothersome, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguy, plaguey, teasing, vexatious