nothingness
n.n. the state of having no physical or mental existence. It is often used to describe the feeling of being completely empty or the idea that the universe started from a state of no matter.
n. the state of non-existence or the absence of any physical or mental content. In philosophical contexts, it refers to the concept of a void or the primordial state before the creation of the universe.
The silence of the room felt like a deep sense of nothingness.
The philosopher spent his life trying to understand the nature of nothingness and how it relates to the origin of the cosmos.
In many Eastern traditions, the concept of nothingness is not a state of despair but rather a profound emptiness that allows for the manifestation of all possible forms and ideas.
From nothing + -ness.