In a way which suggests death.
Extremely, incredibly.
Very boring.
Aiming or willing to destroy; implacable; desperately hostile.
Very accurate (of aiming with a bow, firearm, etc.).
Excellent, awesome, cool.
Causing death; lethal.
In a fatal manner; lethally.
Ultimately, with finality or irrevocability, moving towards the demise of something.
Fatedly; according to the dictates of fate or doom.