WordWeb Online

1. Greatly annoyed; out of patience
   "had an exasperated look on his face"; "felt exasperated beyond endurance"
   - cheesed off [Brit], browned off

1. Exasperate or irritate
   - exacerbate, aggravate
    
2. Make furious
   - infuriate, incense
    
3. Make worse
   - worsen, aggravate, exacerbate

See also: displeased, exasperation

Type of: alter, anger, change, modify