What is the meaning of irritated?

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
• Excite to an abnormal condition, or chafe or inflame.
  • usage: "Aspirin irritates my stomach"
  • synonyms: irritate
• Excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus.
  • usage: "irritate the glands of a leaf"
  • synonyms: irritate

adjective

• Aroused to impatience or anger.
  • usage: "made an irritated gesture"; "feeling nettled from the constant teasing"; "peeved about being left out"; "felt really pissed at her snootiness"; "riled no end by his lies"; "roiled by the delay"
  • synonyms: annoyed, miffed, nettled, peeved, pissed, pissed off, riled, roiled, steamed, stung