How to pronounce murderous:
Example: "A homicidal rage"
Of, characterized by, or pertaining to murder or murderers.
Of a person: intending or likely to commit murder; bloodthirsty, homicidal.
Example: "She gave me a murderous look."
Of an object: used to commit murder; capable of causing death; deadly, fatal.
(by extension) very difficult.
Example: "A murderous exam"