from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Disposed to believe too readily; gullible.
  • adj. Arising from or characterized by credulity. See Usage Note at credible.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Excessively ready to believe things; gullible.
  • adj. Believed too readily.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Apt to believe on slight evidence; easily imposed upon; unsuspecting.
  • adj. Believed too readily.

from The Century Dictionary and Cyclopedia

  • Characterized by or exhibiting credulity; uncritical with regard to beliefs; easily deceived; gullible.
  • Believed too readily.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. showing a lack of judgment or experience
  • adj. disposed to believe on little evidence


From Latin crēdulus, from crēdere, to believe; see kerd- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Originated in 1576, from Latin crēdulus ("that easily believes a thing, credulous"), from crēdō ("to believe"). (Wiktionary)



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  • Having too great a readiness to believe things

    July 8, 2014