Aiming or willing to destroy; implacable; desperately hostile.
Very boring.
Very accurate (of aiming with a bow, firearm, etc.).
Excellent, awesome, cool.
Causing death; lethal.
In a way which suggests death.
Extremely, incredibly.
Showing promise, and likely to develop in a desirable fashion.
a promising young apprentice
Encouraging and inspiring confidence.
The act of making a promise.