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Synonyms

unquestionable

American  
[uhn-kwes-chuh-nuh-buhl] / ʌnˈkwɛs tʃə nə bəl /

adjective

  1. not open to question; beyond doubt or dispute; indisputable; undeniable; certain.

    an unquestionable fact.

  2. above criticism; unexceptionable.

    a man of unquestionable principles.


unquestionable British  
/ ʌnˈkwɛstʃənəbəl /

adjective

  1. indubitable or indisputable

  2. not admitting of exception or qualification

    an unquestionable decision

"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

Related Words

See doubtless ( def. ).

Other Word Forms

  • unquestionability noun
  • unquestionableness noun
  • unquestionably adverb

Etymology

Origin of unquestionable

First recorded in 1590–1600; un- 1 + questionable

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.

Millie Bright's international retirement is a reflection of a changing of the guard in Sarina Wiegman's England team - but her impact on their success is unquestionable.

From BBC • Oct. 13, 2025

No matter where people stand on Schulz’s point of view on comedy, his mark on pop culture with his punchlines has become unquestionable.

From Los Angeles Times • Mar. 4, 2025

The precision of the drops is astonishing, the impact heart-lifting, their moments of victory obvious and unquestionable.

From Los Angeles Times • Jan. 11, 2025

For all England's unquestionable courage and energy, they have continually been undermined by mistakes this autumn.

From BBC • Nov. 16, 2024

He heads the shooting list for to-day with three unquestionable hits.

From "All Quiet on the Western Front: A Novel" by Erich Maria Remarque