copious

American  

[koh-pee-uhs] / ˈkoʊ pi əs /

adjective

1. large in quantity or number; abundant; plentiful.

   copious amounts of food.

   Synonyms:

   bountiful

   Antonyms:

   scarce, scanty

2. having or yielding an abundant supply.

   a copious larder;

   a copious harvest.

3. exhibiting abundance or fullness, as of thoughts or words.

   Antonyms:

   meager

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copious British  

/ ˈkəʊpɪəs /

adjective

1. abundant; extensive in quantity

2. having or providing an abundant supply

3. full of words, ideas, etc; profuse

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Related Words

See ample.

Other Word Forms

• copiosity noun
• copiously adverb
• copiousness noun
• overcopious adjective
• overcopiously adverb
• overcopiousness noun
• uncopious adjective

Etymology

Origin of copious

First recorded in 1350–1400; Middle English, from Latin cōpiōsus “plentiful, rich,” from cōpi(a) “wealth” (from co- co- + op(s) “plenty, power, support” + -ia -ia ) + -ōsus -ous

Example Sentences

India lacks such large inventories, but as prices climb, it may opt to buy the copious volumes of sanctioned crude oil currently in floating storage, mainly in East Asia.

From Barron's • Mar. 5, 2026

Musk’s xAI is one of several AI companies expanding in the Middle East, which offers copious land and energy, as well as sovereign-wealth funds eager to finance development.

From The Wall Street Journal • Nov. 19, 2025

She said it had been "exceptionally" mild through the beginning of November but there had also been "copious" amount of rain.

From BBC • Nov. 17, 2025

The copious, contradictory anecdotal evidence provided no consensus for a path forward.

From Los Angeles Times • Nov. 3, 2025

There was real excitement in her voice as she read the copious notes around the map.

From "Witchlings" by Claribel A. Ortega

Related Words

• ample
• extensive