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Synonyms

incredulous

American  
[in-krej-uh-luhs] / ɪnˈkrɛdʒ ə ləs /

adjective

  1. not credulous; disinclined or indisposed to believe; skeptical

  2. indicating or showing unbelief.

    an incredulous smile.


incredulous British  
/ ɪnˈkrɛdjʊləs /

adjective

  1. (often foll by of) not prepared or willing to believe (something); unbelieving

"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 doubtful.

Other Word Forms

  • incredulously adverb
  • incredulousness noun

Etymology

Origin of incredulous

From the Latin word incrēdulus, dating back to 1525–35; in- 3, credulous

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.

Curious onlookers filmed the scene on their smartphones, many still incredulous at the speed and magnitude of the day's events.

From Barron's • Jan. 4, 2026

His own father was so incredulous that a coach like Harbaugh considered Simpson to be a legitimate quarterback prospect that he asked the Michigan coach to explain his interest.

From The Wall Street Journal • Dec. 2, 2025

There would be incredulous Muscovites who could not square the idea of a salad bar.

From Slate • Nov. 13, 2025

“There’s a dad that’s not doing it,” she repeated — less incredulous than reproving now.

From Los Angeles Times • Oct. 11, 2025

“Are you screaming at me,” my father said, incredulous, “at me, your father. You-you-you my own flesh and blood,” he stammered.

From "Kaffir Boy: An Autobiography" by Mark Mathabane