gullible

adjective

gull·​ible ˈgə-lə-bəl How to pronounce gullible (audio)
variants or less commonly gullable
Synonyms of gulliblenext
: easily duped or cheated
selling overpriced souvenirs to gullible tourists
especially : quick to believe something that is not true
gullibility noun
gullibly adverb

Did you know?

“Let a gull steal my fries once, shame on the gull; let a gull steal my fries twice, shame on me.” So goes the classic, oft-repeated seaside maxim reminding people to guard against being gullible. Okay, that’s not really how the old saw goes, but on the off chance that you believed our little trick, you yourself were, however briefly, gullible—that is, “easily duped.” The adjective gullible grew out of the older verb gull, meaning “to deceive or take advantage of.” (That gull originally meant “to guzzle or gulp greedily,” and comes from an even older gull meaning “throat, gullet.”) Another relative is the noun gull, referring to a person who is easy to cheat. However, no matter how much the seabirds we call gulls love to pilfer our potatoes, that avian gull has no relation, and is instead of Celtic origin—we promise.

Examples of gullible in a Sentence

I'm not gullible enough to believe something that outrageous. They sell overpriced souvenirs to gullible tourists.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The result is that the current generation of LLMs is far more gullible than people. Bruce Schneier, IEEE Spectrum, 21 Jan. 2026 Norris’s archetypically American tale gave Stroheim an opportunity to build on his earlier depictions of Americans abroad as gullible and oblivious. Richard Brody, New Yorker, 17 Jan. 2026 Traitors is about the gullible and the skeptical working together to sieve the fraudulent from the truthful, an amalgamated nightmare of village idiots locking themselves in the stocks and pelting each other with rotten fruit. Raven Smith, Vogue, 9 Jan. 2026 Eduardo Montalvo, Coral Gables On sticking with Trump The real tragedy of the current occupant of the White House is that millions of Americans are sufficiently gullible, ignorant or bigoted to have voted for him and still support him. Sun Sentinel Editorial Board, Sun Sentinel, 3 Jan. 2026 See All Example Sentences for gullible

Word History

Etymology

see gull entry 2

First Known Use

1818, in the meaning defined above

Time Traveler
The first known use of gullible was in 1818

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Cite this Entry

“Gullible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gullible. Accessed 28 Jan. 2026.

Kids Definition

gullible

adjective
gull·​ible ˈgəl-ə-bəl How to pronounce gullible (audio)
: easily deceived or cheated
gullibility noun
gullibly adverb

More from Merriam-Webster on gullible

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