nefarious

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

extremely wicked
- nefarious schemes
- a villainous plot
- a villainous band of thieves
• Syn:
villainous
• Similar to:
wicked
• Derivationally related forms:
villain (for: villainous), villainousness (for: villainous), nefariousness