"lifeless" in the adjective sense
1. lifeless, exanimate
deprived of life no longer living
"a lifeless body"
destitute or having been emptied of life or living beings
"after the dance the littered and lifeless ballroom echoed hollowly"
lacking animation or excitement or activity
"the party being dead we left early"
"it was a lifeless party until she arrived"
not having the capacity to support life
"a lifeless planet"
Source: WordNet® (An amazing lexical database of English)
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