Nothingness

noun

• the absence or cessation of life or existence.

"the fear of the total nothingness of death"

Oblivion, Non-existence, Non-being, Non-life, Nullity, Blankness, void

• worthlessness or insignificance.

"the nothingness of it all overwhelmed him"

Unimportance, Insignificance, Triviality, Pointlessness, uselessness