(noun, adjective)


1. unusually great in size or amount or degree or especially extent or scope

- at vast (or immense) expense

- the vast reaches of outer space

- the vast accumulation of knowledge...which we call civilization

Similar word(s): big, large, brobdingnagian, huge, immense

Sentences with vast as an adjective:

- The Sahara desert is vast.

- There is a vast difference between them.


1. (poetic) A vast space.