WordWeb Online

1. Causing an emotional disturbance
   "an upsetting experience";
   - disconcerting

1. Disturb the balance or stability of
   "The hostile talks upset the peaceful relations between the two countries"
    
2. Cause to lose one's composure
   "Persons frequently employ falsehoods to a sick man who cannot recover, lest it should upset his mind";
   - discompose, untune, disconcert, discomfit
    
3. Cause profound worry; make to feel uncomfortable or anxious
   "This book upset me";
   - disturb, trouble
    
4. Cause to overturn from an upright or normal position
   "the clumsy customer upset the vase";
   - overturn, tip over, turn over, knock over, bowl over, tump over
    
5. Form metals with a swage
   - swage
    
6. Defeat suddenly and unexpectedly
   "The foreign team upset the local team"

See also: displeasing, lean

Type of: affect, arouse, defeat, displace, disturb, elicit, enkindle [literary], evoke, fire, forge, form, get the better of, impress, kindle, mold [N. Amer], mould [Brit, Cdn], move, overcome, provoke, raise, shape, strike, touch, work

Encyclopedia: Upsetting