not credulous; disinclined or indisposed to believe; skeptical.
indicating or showing unbelief: an incredulous smile.

Origin of incredulous

From the Latin word incrēdulus, dating back to 1525–35. See in-3, credulous
Related formsin·cred·u·lous·ly, adverbin·cred·u·lous·ness, noun
Can be confusedincredible incredulous

Synonyms for incredulous

Synonym study Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for incredulous

Contemporary Examples of incredulous

Historical Examples of incredulous

  • The exclamation came from the girl in a note of incredulous astonishment.

    Within the Law

    Marvin Dana

  • In the beginning it was incredulous about some of the details.


    Mary Roberts Rinehart

  • Wilson's voice showed that he was more than incredulous; he was profoundly moved.


    Mary Roberts Rinehart

  • Chip nodded, half suffocated with crowding, incredulous hopes.

  • She saw the lift of her head, the incredulous, resentful look in her eyes.

    Her Father's Daughter

    Gene Stratton-Porter

British Dictionary definitions for incredulous



(often foll by of) not prepared or willing to believe (something); unbelieving
Derived Formsincredulously, adverbincredulousness, noun
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 incredulous

"unbelieving," 1570s, from Latin incredulus "unbelieving, incredulous," from in- "not" (see in- (1)) + credulus (see credulous). Formerly also of religious beliefs. Related: Incredulously; incredulousness.

Online Etymology Dictionary, © 2010 Douglas Harper