The actual state of affairs:
An extensive space or area:
A monstrous or outrageous act; very wicked crime
The definition of an expanse is the distance to which something can grow or expand, or a vast open surface.
The definition of immensity is the state of being huge or endless.
Greatness is defined as being larger than ordinary size or ability, or being higher in degree or importance.
Find another word for vastness. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for vastness, like: hugeness, size, grandness, extent, enormity, expanse, enormousness, immenseness, immensity, prodigiousness and stupendousness.