WordWeb Online

1. Aroused to impatience or anger
   "had an exasperated look on his face"; "felt exasperated beyond endurance";
   - annoyed, irritated, miffed [informal], nettled, peeved, pissed [informal], riled, roiled, steamed [informal], stung, hacked off [Brit, informal], cheesed off [Brit, informal], browned off [Brit, informal], brassed off [Brit, informal]

1. Make very annoyed or frustrated
   - exacerbate, aggravate
    
2. Make furious
   "The boy knew how to exasperate his mother";
   - infuriate, incense[2]
    
3. Make worse
   - worsen, aggravate, exacerbate

See also: displeased

Type of: alter, anger, change, modify