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

1. 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 [rare], disconcert, discomfit
    
2. Cause profound worry; make to feel uncomfortable or anxious
   "This book upset me";
   - disturb, trouble
    
3. Disturb the balance or stability of
   "The hostile talks upset the peaceful relations between the two countries"
    
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. Defeat suddenly and unexpectedly
   "The foreign team upset the local team"
    
6. Form metals with a swage
   "The blacksmith upset the iron rod into shape";
   - swage

See also: angle, displeasing

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

Encyclopedia: Upsetting