Inert, non-living (9)
I believe the answer is:
inanimate
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">inert</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">non-living</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that non-living can be written as inanimate)</span><br/ ><br/ ></span>
(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" .)