- of very great area or extent; immense: the vast reaches of outer space.
- of very great size or proportions; huge; enormous: vast piles of rubble left in the wake of the war.
- very great in number, quantity, amount, etc.: vast sums of money.
- very great in degree, intensity, etc.: an artisan of vast skill.
- Literary. an immense or boundless expanse or space.
Origin of vast
SynonymsSee more synonyms on Thesaurus.com
Examples from the Web for vastly
The two carriers are headquartered in Kuala Lumpur but have vastly different profiles and operating philosophies.The Presumed Crash of AirAsia Flight QZ8501 Is Nothing Like MH370
December 29, 2014
Our time is so vastly different in its particulars that the parallels work only in broad strokes.American Democracy Under Threat for 250 Years
December 28, 2014
To prevent further attacks we have vastly improved our defenses at home.Why’s Al Qaeda So Strong? Washington Has (Literally) No idea
November 9, 2014
In terms of options, the cultural world of 1974 was vastly better than that of 1954.This One Picture of Telly Savalas Refutes All Fears That Progress Has Ended
October 30, 2014
These numbers, although startling, are thought to “vastly underestimate” the reality.CDC Director: First U.S. Ebola Patient ‘Critically Ill’
September 30, 2014
If I am capable of judging, our tempers and inclinations are vastly different.Clarissa, Volume 1 (of 9)
He was vastly astonished at the outset and not quite pleased.
"I would'nt have believed it possible," she declared, vastly impressed.
With all her sophistication, Tillie was vastly ignorant of life.K
Mary Roberts Rinehart
"You are vastly mistaken, my good friend," said the observer.Earth's Holocaust (From "Mosses From An Old Manse")
- unusually large in size, extent, degree, or number; immense
- (prenominal) (intensifier)in vast haste
- the vast mainly poetic immense or boundless space
- British dialect a very great amount or number
Word Origin and History for vastly
1570s, from Middle French vaste, from Latin vastus "immense, extensive, huge," also "desolate, unoccupied, empty." The two meanings probably originally attached to two separate words, one with a long -a- one with a short -a-, that merged in early Latin (see waste). Very popular early 18c. as an intensifier. Related: Vastly; vastness.