Adjective
1. deprived of life; no longer living;
"a lifeless body"2. destitute or having been emptied of life or living beings;
"after the dance the littered and lifeless ballroom echoed hollowly"3. lacking animation or excitement or activity;
"the party being dead we left early""it was a lifeless party until she arrived"4. not having the capacity to support life;
"a lifeless planet"