1. Aroused to impatience or anger; slightly annoyed
   "made an irritated gesture";
   - annoyed, miffed [informal], nettled, peeved, pissed [informal], riled, roiled, steamed [informal], stung, hacked off [Brit, informal], exasperated, cheesed off [Brit, informal], browned off [Brit, informal], brassed off [Brit, informal]

1. Cause annoyance, especially by persistent minor irritations
   "His constant interruptions irritate the entire team";
   - annoy, rag, get to, bother, get at [informal], rile, nark [Brit, slang], nettle, gravel [US], vex, chafe [archaic], devil, tick off [informal], roil [N. Amer]
    
2. Excite to an abnormal condition,, chafe or inflame
   "Aspirin irritates my stomach"
    
3. (physiology) excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus
   "irritate the glands of a leaf"

See also: displeased

Type of: aggravate, displease, exacerbate, exasperate, excite, stimulate, worsen

Antonym: soothe

Encyclopedia: Irritated