• synonyms


[pri-dey-shuh s]
See more synonyms for predacious on Thesaurus.com
  1. predatory; rapacious.
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Also especially Biology, pre·da·ceous.

Origin of predacious

First recorded in 1705–15; pred(atory) + -acious
Related formspre·da·cious·ness, pre·dac·i·ty [pri-das-i-tee] /prɪˈdæs ɪ ti/; especially Biology, pre·da·ceous·ness, nounun·pre·da·ceous, adjectiveun·pre·da·ceous·ly, adverbun·pre·da·ceous·ness, nounun·pre·da·cious, adjectiveun·pre·da·cious·ly, adverbun·pre·da·cious·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for predacious

Historical Examples

  • Indeed, its predacious habits unfit it for associating with its kind.

    Bible Animals;

    J. G. Wood

  • The principal obstacles to this are snow and predacious animals.

    Our Domestic Birds

    John H. Robinson

  • The sea-leopard, the only predacious member of the seal family, has an elongated agile body and a large head with massive jaws.

  • Thus was a graminivorous animal nurtured by a carnivorous and predacious one!

  • They cared very little about defending a state of things which their predacious instincts led them, on the contrary, to attack.


    Gustave Aimard

British Dictionary definitions for predacious



  1. (of animals) habitually hunting and killing other animals for food
  2. preying on others
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Derived Formspredaciousness, predaceousness or predacity (prɪˈdæsɪtɪ), noun

Word Origin

C18: from Latin praeda plunder; compare predatory
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 predacious


also predaceous, 1713, from stem of predation (Latin praedari) + -acious.

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Online Etymology Dictionary, © 2010 Douglas Harper