Emptiness (10)
'emptiness' is the definition.
(I know that emptiness can be written as void)
This is all the clue.
(Other definitions for void that I've seen before include "Empty space or not legally binding" , "Containing nothing or not legally binding" , "Null and empty" , "Empty space or vacuum" , "Free" .)
'emptiness' is the definition.
(thesaurus)
This is all the clue.