Adjective

(en adjective)

Having a lot of space inside; roomy.

* 1874 , (Marcus Clarke), (For the Term of His Natural Life) Chapter V

The Malabar, that huge sea monster, in whose capacious belly so many human creatures lived and suffered, had dwindled to a walnut-shell, and yet beside her bulk how infinitely small had their own frail cockboat appeared as they shot out from under her towering stern!

*{{quote-book, year=1905, author=

, title= , chapter=1 citation , passage= “Do I fidget you ?” he asked apologetically, whilst his long bony fingers buried themselves, string, knots, and all, into the capacious pockets of his magnificent tweed ulster.}}

Adjective

(en-adj)

Very large or wide (literally or figuratively).

The Sahara desert is vast .

There is a vast difference between them.

Very great in size, amount, degree, intensity, or especially extent.

* {{quote-magazine, year=2012, month=March-April

, author=Anna Lena Phillips , title=Sneaky Silk Moths , volume=100, issue=2, page=172 , magazine=(American Scientist) citation , passage=Last spring, the periodical cicadas emerged across eastern North America. Their vast numbers and short above-ground life spans inspired awe and irritation in humans—and made for good meals for birds and small mammals.}}

(obsolete) Waste; desert; desolate; lonely.

* William Shakespeare, the Life and Death of Richard the Third Act I, scene IV:

the empty, vast , and wandering air