emptiness

(noun) the state of containing nothing.

(noun) having an empty stomach.

(noun) an empty area or space. Synonyms: void, vacancy, vacuum. Examples: "The huge desert voids." "The emptiness of outer space." "Without their support he'll be ruling in a vacuum."

(noun) the quality of being valueless or futile. Synonyms: vanity. Example: "He rejected the vanities of the world."