Inert, non-living (9)
I believe the answer is:
inanimate
This clue is a double definition.
'inert' is the first definition.
(thesaurus)
'non-living' is the second definition.
(I know that non-living can be written as inanimate)
(Other definitions for inanimate that I've seen before include "lacking in spirit" , "Showing no sign of life" , "Dull" , "Showing no feeling" , "Lifeless, showing no signs of activity" .)