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Synonyms

vastness

American  
[vast-nis] / ˈvæst nɪs /

noun

  1. the fact or quality of being very great in extent, size, degree, amount, etc.; immensity or hugeness.

    Given the vastness of the country, improved infrastructure will have to precede any economic development.

    I was awestruck by the sheer vastness of her knowledge on the subject.


Other Word Forms

Etymology

Origin of vastness

First recorded in 1600–10; vast ( def. ) + -ness ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As the smooth highway north of Seville stretched into the vastness of pastoral Extremadura, the chances of finding a lynx, which remains rarer than the snow leopard or the Bengal tiger, felt impossibly small.

From The Wall Street Journal • May 30, 2026

After the comment made headlines, Obama sought to clarify he thinks it's statistically likely life exists beyond Earth, given the vastness of the universe.

From BBC • Feb. 19, 2026

The ever-growing vastness of human knowledge is no longer stored in libraries, but on hard drives that struggle to last decades, let alone millennia.

From Barron's • Feb. 18, 2026

Finding and tracking such a small object in the vastness of space, especially when its position is still uncertain, is a remarkable achievement.

From Science Daily • Oct. 9, 2025

Every tiny movement seemed magnified in the vastness of the forest.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

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