Vast — synonyms, definition

1. vast (a)

all-inclusive ample astronomical big bottomless boundless broad colossal comprehensive countless endless enormous extensive far-reaching giant gigantic grand great huge immeasurable • • •

2. vast (Adjective)

Brobdingnagian

vast (Adjective) — Unusually great in size or amount or degree or especially extent or scope. ex. "at vast (or immense) expense" ex. "the vast reaches of outer space"