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1. Reject outright and bluntly
   - snub, repel, stiff [N. Amer]
    
2. Force or drive back
   "rebuff the attack"
   - repel, repulse, fight off, drive back

1. A deliberate discourteous act (usually as an expression of anger or disapproval)
   - slight
    
2. An instance of driving away or warding off
   - snub, repulse

Derived forms: rebuffing, rebuffs, rebuffed

Type of: defend, discourtesy, disdain, fight, fight back, fight down, freeze off, offence [Brit, Cdn], offense [US], offensive activity, oppose, pooh-pooh, reject, rejection, scorn, spurn, turn down