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Definitions

voluminous

[vuh-loo-muh-nuhs] / vəˈlu mə nəs /
ADJECTIVE
big, vast
Synonyms
STRONGEST
ample billowing comprehensive copious extensive numerous
WEAK
abundant bulky capacious cavernous convoluted covering expansive full great large legion many massive multifarious multitudinous prolific roomy several simple spacious sundry swelling various
Antonyms
STRONGEST
lacking meager
WEAK
little slight small tiny

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.

What many saw was a cautious career prosecutor who was forced to testify under duress and who deflected questions from both Democrats and Republicans by referring repeatedly to his voluminous report.

From Barron's • Mar. 21, 2026

The disclosures at funds like this often are as impenetrable as they are voluminous.

From The Wall Street Journal • Mar. 16, 2026

Discovery’s voluminous film and television library, giving customers more choices of what to watch with the aim of boosting engagement.

From MarketWatch • Dec. 9, 2025

Today we discuss Texas, overreaction and the voluminous field of candidates for California governor.

From Los Angeles Times • Nov. 23, 2025

Triumphantly Matt pulled a thick wad of bread from the voluminous pocket of his baggy shorts.

From "Gathering Blue" by Lois Lowry

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.