Personification.
It is when you give a lifeless object characteristics either human or of personal nature. For Example: The sun smiled down The wind howled in the night The alarm shrieked at me
the plant was lifeless
Destitute of life, or deprived of life; not containing, or inhabited by, living beings or vegetation; dead, or apparently dead; spiritless; powerless; dull; as, a lifeless carcass; lifeless matter; a lifeless desert; a lifeless wine; a lifeless story.
Life to Lifeless was created in 2002.
Police examined the lifeless body.
The sentence is an example of personification, where the corpses are described as keeping mournful company despite being lifeless.
"Lifeless" is "munashii" (pronounced: moo-nah-sheeee).
The sea is not lifeless, you may wish to redefine your question
Metaphor
Personification
Lifeless - 2012 I was released on: USA: 16 August 2012 (limited)