• synonyms


[in-di-fek-tuh-buh l]
See more synonyms for indefectible on Thesaurus.com
  1. not defectible; not liable to defect or failure.
  2. not liable to fault or imperfection; faultless.
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Origin of indefectible

First recorded in 1650–60; in-3 + defectible
Related formsin·de·fect·i·bil·i·ty, nounin·de·fect·i·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for indefectible

splendid, foolproof, superb, ideal, pure, excellent, impeccable, optimal, fitting, quintessential, sound, experienced, expert, crowning, stainless, classical, accomplished, culminating, excelling, adept

Examples from the Web for indefectible

Historical Examples of indefectible

  • And since at no time must it cease to teach, it must be indefectible.

    Explanation of Catholic Morals

    John H. Stapleton

  • Indefectible, in-de-fekt′i-bl, adj. incapable of defect: unfailing.

  • The mechanism of the United States, like that of the universe, reposes on indefectible laws and uncontrollable forces.

    The Arena


  • The church is therefore, by her own divine constitution, by the very principle and law of her existence, indefectible.

  • Under these varying 226 modes and presentations it permanently abides as the indefectible substance of the spirit.

    The Reform of Education

    Giovanni Gentile

British Dictionary definitions for indefectible


  1. not subject to decay or failure
  2. flawless
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Derived Formsindefectibility, nounindefectibly, 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