"One of God's own prototypes. [. . .] Too ____ to live, and too rare to die.” (Hunter S Thompson, Fear and Loathing in Las Vegas) (5)
I believe the answer is:
weird
(Other definitions for weird that I've seen before include "Unearthly" , "Rum" , "Strange, peculiar" , "Quirky" , "Strikingly odd or unusual" .)