• synonyms


[ob-doo-rit, -dyoo-]
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  1. unmoved by persuasion, pity, or tender feelings; stubborn; unyielding.
  2. stubbornly resistant to moral influence; persistently impenitent: an obdurate sinner.
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Origin of obdurate

1400–50; late Middle English obdurat < Latin obdūrātus (past participle of obdūrāre to harden), equivalent to ob- ob- + dūr(us) hard + -ātus -ate1
Related formsob·du·rate·ly, adverbob·du·rate·ness, nounun·ob·du·rate, adjectiveun·ob·du·rate·ly, adverbun·ob·du·rate·ness, noun


See more synonyms for obdurate on Thesaurus.com
1. hard, obstinate, callous, unbending, inflexible. 2. unregenerate, reprobate, shameless.


1. soft, tractable. 2. humble, repentant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for obdurate


  1. not easily moved by feelings or supplication; hardhearted
  2. impervious to persuasion, esp to moral persuasion
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Derived Formsobduracy or obdurateness, nounobdurately, adverb

Word Origin

C15: from Latin obdūrāre to make hard, from ob- (intensive) + dūrus hard; compare endure
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 obdurate


mid-15c., "stubborn; hardened," from Latin obduratus "hardened," past participle of obdurare "be hard, hold out, persist, endure," from ob "against" (see ob-) + durare "harden, render hard," from durus "hard" (see endure). Related: Obdurately.

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Online Etymology Dictionary, © 2010 Douglas Harper