re·buff /rɪˈbʌf/
  斷然拒絕,嚴厲拒絕,漠不關心(vt.)嚴厲拒絕
  Re·buff n.
  1. Repercussion, or beating back; a quick and sudden resistance.
     The strong rebuff of some tumultuous cloud.   --Milton.
  2. Sudden check; unexpected repulse; defeat; refusal; repellence; rejection of solicitation.
  Re·buff, v. t. [imp. & p. p. Rebuffed p. pr. & vb. n. Rebuffing.] To beat back; to offer sudden resistance to; to check; to repel or repulse violently, harshly, or uncourteously.
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  rebuff
       n 1: a deliberate discourteous act (usually as an expression of
            anger or disapproval) [syn: slight]
       2: an instance of driving away or warding off [syn: snub, repulse]
       v 1: reject outright and bluntly; "She snubbed his proposal"
            [syn: snub, repel]
       2: force or drive back; "repel the attacker"; "fight off the
          onslaught"; "rebuff the attack" [syn: repel, repulse,
          fight off, drive back]