adjectives
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"
is similar to
holding or containing nothing
"an empty glass"; "an empty room"; "full of empty seats"; "empty hours"
lacking animation or excitement or activity
"the party being dead we left early"; "it was a lifeless party until she arrived"
is similar to
not animated or enlivened; dull
not having the capacity to support life
"a lifeless planet"
is similar to
not showing characteristics of life especially the capacity to sustain life; no longer exerting force or having energy or heat
"Mars is a dead planet"; "dead soil"; "dead coals"; "the fire is dead"