the state of being nothing.

something that is nonexistent

a view of humanity as suspended between infinity and nothingness.

lack of being; nonexistence

The sound faded into nothingness.

unconsciousness or death

She remembered a dizzy feeling, then nothingness.

utter insignificance, emptiness, or worthlessness; triviality

The days followed one another in an endless procession of nothingness.

something insignificant or without value.

noun

eminence , importance , significance

noun

pettiness , smallness , unimportance , worthlessness , nihility , nonexistence , nothing , barrenness , emptiness , vacancy , vacuity , vacuum , void , death , naught , non-existence , nonentity , nullity , oblivion