• synonyms


[in-di-fee-zuh-buh l]
See more synonyms for indefeasible on Thesaurus.com
  1. not defeasible; not to be annulled or made void; not forfeitable.
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Origin of indefeasible

First recorded in 1540–50; in-3 + defeasible
Related formsin·de·fea·si·bil·i·ty, in·de·fea·si·ble·ness, nounin·de·fea·si·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for indefeasible

impregnable, indomitable, innate, insuperable, intractable, invincible, invulnerable, irrepressible, resistant, secure, unbeatable, unyielding, unsurpassable, indefeasible, inexpugnable

Examples from the Web for indefeasible

Historical Examples of indefeasible

  • This gives me the indefeasible right to dogmatize about preaching.

    My New Curate

    P.A. Sheehan

  • Since the abolition of chattel slavery this has been indefeasible except for crime.


    Calvin Elliott

  • It is indefeasible and perpetual,—not to be sold, not to be bought.

  • And thus piety and justice shall be as indefeasible as happiness.

    The City of God, Volume II

    Aurelius Augustine

  • And it was her indefeasible belief that Jean-Marie was dull.

British Dictionary definitions for indefeasible


  1. law not liable to be annulled or forfeited
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Derived Formsindefeasibility or indefeasibleness, nounindefeasibly, adverb
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 indefeasible


1530s (implied in indefeasibly), from in- (1) "not, opposite of" + defeasible (see defeasance).

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Online Etymology Dictionary, © 2010 Douglas Harper