dangerous

ˈdeɪn(d)ʒ(ə)rəs

adjective

able or likely to cause harm or injury.

a dangerous animal

menacing,threatening,treacherous,savage,wild,vicious,murderous,desperate,minacious

SYNONYMS

desperatemenacingminaciousmurderoussavagethreateningtreacherousviciouswild