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  1. large in quantity or number; abundant; plentiful: copious amounts of food.
  2. having or yielding an abundant supply: a copious larder; a copious harvest.
  3. exhibiting abundance or fullness, as of thoughts or words.
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Origin of copious

1350–1400; Middle English < Latin cōpiōsus plentiful, rich, equivalent to cōpi(a) wealth (co- co- + op(s) Ops + -ia -ia) + -ōsus -ous
Related formsco·pi·ous·ly, adverbco·pi·ous·ness, co·pi·os·i·ty [koh-pee-os-i-tee] /ˌkoʊ piˈɒs ɪ ti/, nouno·ver·co·pi·ous, adjectiveo·ver·co·pi·ous·ly, adverbo·ver·co·pi·ous·ness, nounun·co·pi·ous, adjective

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2. See ample.

Antonyms for copious

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for copious

extensive, ample, bountiful, exuberant, full, galore, generous, heavy, lavish, liberal, lush, luxuriant, overflowing, plentiful, plenty, profuse, prolix, replete, rich, verbose

Examples from the Web for copious

Contemporary Examples of copious

Historical Examples of copious

British Dictionary definitions for copious


  1. abundant; extensive in quantity
  2. having or providing an abundant supply
  3. full of words, ideas, etc; profuse
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Derived Formscopiously, adverbcopiousness, noun

Word Origin for copious

C14: from Latin cōpiōsus well supplied, from cōpia abundance, from ops wealth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for copious


mid-14c., from Latin copiosus "plentiful," from copia "an abundance, ample supply, profusion, plenty," from com- "with" (see com-) + ops (genitive opis) "power, wealth, resources," from PIE root *op- "to work, produce in abundance" (see opus). Related: Copiously.

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Online Etymology Dictionary, © 2010 Douglas Harper