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Synonyms

inviolable

American  
[in-vahy-uh-luh-buhl] / ɪnˈvaɪ ə lə bəl /

adjective

  1. prohibiting violation; secure from destruction, violence, infringement, or desecration.

    an inviolable sanctuary;

    an inviolable promise.

  2. incapable of being violated; impregnable; unassailable.

    inviolable secrecy.


inviolable British  
/ ɪnˈvaɪələbəl /

adjective

  1. that must not or cannot be transgressed, dishonoured, or broken; to be kept sacred

    an inviolable oath

"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

Other Word Forms

  • inviolability noun
  • inviolably adverb

Etymology

Origin of inviolable

First recorded in 1400–50; late Middle English, from Latin inviolābilis; in- 3, violable

Explanation

Wedding vows and vault combinations that can’t be broken are considered inviolable. (Of course, divorce lawyers and bank robbers consider this a challenge.) The word can refer to a physical structure (a fortress, for instance) or something more conceptual (human rights or morals, perhaps). Inviolable has changed little from its Latin origin of inviolabilis, which combines the prefix in- (meaning "not") with the verb violare ("to violate"). Inviolable turns up in religious settings too, usually in reference to texts or rites. In that context, it means "sacred." No surprise: the antonym of inviolable is violable ("accessible or penetrable").

Keep Reading on Vocabulary.com

Vocabulary lists containing inviolable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the face of ideological challenges and pragmatic objections, both men insisted that the dignity of each individual person was sacred and inviolable, and that individual rights must prevail against states and ideologies.

From The Wall Street Journal • Oct. 24, 2025

With that selflessness at the core of public service, he wrote: “I have thence enjoyed of manifesting my inviolable attachment by services faithful and persevering, though in usefulness unequal to my zeal.”

From Slate • Jul. 22, 2024

UN Secretary General Antonio Guterres condemned the strike through a spokesperson, saying that UN premises must be "inviolable" and protected by "all parties" during conflicts.

From BBC • Jun. 6, 2024

The astounding blue sea ice seemed almost inviolable in its grandeur.

From Salon • Mar. 7, 2023

He stood there looking at the destruction of the harbor and knew he had something inviolable that other men had no inkling of and at the same time he had nothing.

From "Snow Falling on Cedars: A Novel" by David Guterson