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1. Given to biting; biting.
2. Caustic; sarcastic.

[Latin mordāx, mordāc- (from mordēre, to bite; see mer- in Indo-European roots) + -ious.]

mor·da′cious·ly adv.
mor·dac′i·ty (-dăs′ĭ-tē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


sarcastic, caustic, or biting
[C17: from Latin mordax, from mordēre to bite]
morˈdaciously adv
mordacity, morˈdaciousness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(mɔrˈdeɪ ʃəs)

1. biting or given to biting.
2. sharp or caustic in style, tone, etc.
[1640–50; < Latin mordāci- (s. of mordāx given to biting, derivative of mordēre to bite) + -ous]
mor•da′cious•ly, adv.
mor•dac′i•ty (-ˈdæs ɪ ti) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.mordacious - capable of wounding; "a barbed compliment"; "a biting aphorism"; "pungent satire"
sarcastic - expressing or expressive of ridicule that wounds
2.mordacious - biting or given to biting; "they deliberately gave me a skittish and mordacious mount"
dangerous, unsafe - involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


a. mordaz, satírico-a.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
MORDACIOUS A Given to biting B Piece of music C Sickly, unwholesome who am I?
We'll be trying to use these words this week New words Asperous: bitter and rough on the palate Eg: celery Hogo: highly flavoured or seasoned (from the French 'haute gout') Eg: sausage Friable: easily crumbled Eg: shortbread Puckery: sour enough to make your mouth pucker Eg: preserved lemons Mordacious: sharp and possessing real bite Eg: mustard Say 'This asparagus is weirdly asperous: I don't think it's in season yet.' y Say 'Your venison sausages are so hogo, Hugo.' Say 'Oxo cubes may be friable, but I tried and they ain't deep fry-able.' Say 'This is strong tequila, Mother!
In the Imperative Persian said, "The attack is equal mordacious typhus + famine + cheat on the exam.