Immensity

n.

1.

The state or quality of being immense; inlimited or immeasurable extension; infinity; vastness in extent or bulk; greatness. Lost in the wilds of vast immensity. - Blackmore. The immensity of the material system. - I. Taylor.

Noun

1.

immensity - unusual largeness in size or extent Synonyms: enormousness, immenseness, sizeableness, vastness, grandness, greatness

all-comprehensiveness, all-inclusiveness, ampleness, amplitude, boundlessness, bulk, countlessness, endlessness, enormity, eternity, exhaustlessness, expanse, forever, formidableness, fullness, gigantism, grandeur, grandness, great scope, greatness, illimitability, immeasurability, incalculability, incomprehensibility, inexhaustibility, infiniteness, infinitude, infinity, innumerability, intensity, interminability, largeness, limitlessness, magnitude, measurelessness, might, mightiness, monstrosity, monstrousness, muchness, numberlessness, perpetuity, plenitude, power, prodigiousness, strength, stupendousness, termlessness, tremendousness, universality, unmeasurability, vastness, world without end