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[guhl-uh-buh l] /ˈgʌl ə bəl/
easily deceived or cheated.
Also, gullable.
1815-25; gull2 + -ible
Related forms
gullibility, noun
gullibly, adverb
credulous, trusting, naive, innocent, simple, green. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for gullible
  • It's a pity some are too gullible to see it.
  • You guys are either being gullible or disingenuous.
  • And purse dealers take advantage of the gullible.
  • Diehl described his daughter as intelligent but gullible.
  • To the gullible, you've just made your opponent look like a nut and you a reasonable person.
  • Fortunately, the readers here aren't so gullible.
  • And people are just so gullible.
  • Stanfield said the gullible fellow actually believed him.
  • One of this book's many contentions is that we are gullible enough to think that any scientific-sounding data we read is true.
  • Sorry to have contributed to the hype, I can be rather gullible and quick to be alarmed.
British Dictionary definitions for gullible


easily taken in or tricked
Derived Forms
gullibility, noun
gullibly, adverb
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
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Word Origin and History for gullible
1793 (implied in gullibility), earlier cullibility (1728), probably connected to gull, a cant term for "dupe, sucker" (1594), which is of uncertain origin. It is perhaps from the bird (see gull (n.)), or from verb gull "to swallow" (1530, from O.Fr. goule, from L. gula "throat," see gullet); in either case with a sense of "someone who will swallow anything thrown at him." Another possibility is M.E. dial. gull "newly hatched bird" (1382), which is perhaps from O.N. golr "yellow," from the hue of its down.
Online Etymology Dictionary, © 2010 Douglas Harper
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