1 terrible

2 fearful

1 murderer

2 assassin

1 savage

2 cruel

3 fierce

1 variant: 凶狠 xiōng hěn

1 chief offender

2 main culprit

1 show one's ferocious appearance (idiom); the atrocious features revealed

2 with fangs bared

1 fiends (idiom); devils and monsters

1 everything bodes ill, no positive signs (idiom); inauspicious

2 everything points to disaster

1 to seek luck and avoid calamity (idiom)

1 misfortune turns to blessing (idiom); to turn an inauspicious start to good account