dastardly

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

despicably cowardly
- "the unprovoked and dastardly attack by Japan on...December 7th"- F.D. Roosevelt
• Syn:
dastard
• Similar to:
cowardly, fearful
• Derivationally related forms:
dastard, dastardliness, dastard (for: dastard)