Definition of vast in English:

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Pronunciation: /vast/


Of very great extent or quantity; immense: a vast plain of buffalo grass
More example sentences
  • They have plenty of money and as a result they consume vast quantities of drink.
  • In this day and age, there is no real need to take vast quantities of cash or even traveller's cheques with you.
  • Water in the form of ice has been found in vast quantities just below the surface across large areas of Mars.
huge, extensive, expansive, broad, wide, sweeping, boundless, immeasurable, limitless, infinite;
enormous, immense, great, massive, colossal, tremendous, mighty, prodigious, gigantic, gargantuan, mammoth, monumental;
giant, towering, mountainous, titanic, Brobdingnagian
informal jumbo, mega, monster, whopping, humongous, astronomical, ginormous


An immense space.
Example sentences
  • And up from the vast a murmuring passed As from a wood of pines.



Pronunciation: /ˈvastē/
Example sentences
  • This restless spirit, having been called forth from the vasty deep, henceforth refused to be exorcised.
  • Glendower says, ‘I can call spirits from the vasty deep.’


Late Middle English: from Latin vastus 'void, immense;' compare with waste.

Words that rhyme with vast

aghast, avast, Belfast, blast, cast, caste, contrast, fast, last, mast, miscast, outlast, past, unsurpassed

For editors and proofreaders

Syllabification: vast

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