das·tard /ˈdæstɚ/
  懦夫,卑鄙的人(a.)怯懦的,卑劣的
  Das·tard n.  One who meanly shrinks from danger; an arrant coward; a poltroon.
     You are all recreants and dashtards, and delight to live in slavery to the nobility.   --Shak.
  Das·tard, a. Meanly shrinking from danger; cowardly; dastardly. “Their dastard souls.”
  Das·tard, v. t. To dastardize. [R.]
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  dastard
       adj : treacherously cowardly; "the unprovoked and dastardly attack
             by Japan on...December 7th"- F.D. Roosevelt [syn: dastard(a),
              dastardly]
       n : a malicious coward