1) An old-fashined rotter 2) Base coward 3) Contemptible coward 4) Cowardly 5) Cowardly sneak 6) Dastardly 7) Despicably cowardly 8) Dirty deed doer 9) Fearful 10) Malicious coward 11) Mean coward 12) Mean, cowardly cad 13) Mean, sneaking coward 14) Sneak 15) Sneaking coward 16) Sneaky coward 17) Sneaky yellowbelly 1) Cad 2) Cowardly 3) Dastardly 
• (a.) Meanly shrinking from danger; cowardly; dastardly. • (v. t.) To dastardize. • (n.) One who meanly shrinks from danger; an arrant coward; a poltroon.
Das'tard adjective Meanly shrinking from danger; cowardly; dastardly. 'Their dastard souls.' Addison. Das'tard noun [ Prob. from Icelandic dæstr exhausted. breathless, past participle of dæsa to groan, lose one's breath; confer dasask to become exhausted, and English daze .] One who meanly shrinks from danger; an arrant coward; a poltroon. « You are all recreants and...Das'tard transitive verb To dastardize. [ R.] Dryden. 
[n] - a malicious coward
noun a malicious coward