Premature, too soon (8)
I believe the answer is:
untimely
I believe this is a double definition.
'premature' is the first definition.
(I know that premature can be written as untimely)
'too soon' is the second definition.
(thesaurus)
(Other definitions for untimely that I've seen before include "Of death, coming too early" , "Happening too soon, perhaps like death" , "Happening too soon, maybe death" , "Tiny mule being unsuitable or premature" , "Of death, premature" .)