a villainous attack
villainous
/ˈvi-lə-nəs/
adjective
befitting a villain (as in evil or depraved character)
being or having the character of a villain : depraved
highly objectionable : wretched
the villainous foe
vicious villainous iniquitous nefarious corrupt degenerate mean highly reprehensible or offensive in character, nature, or conduct. vicious may directly oppose virtuous in implying moral depravity, or may connote malignancy, cruelty, or destructive violence. villainous applies to any evil, depraved, or vile conduct or characteristic.