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Synonyms

gullible

American  
[guhl-uh-buhl] / ˈgʌl ə bəl /
Or gullable

adjective

  1. An image of the word gullible as defined by easily deceived or cheated.

    easily deceived or cheated.

    Synonyms:
    green, simple, innocent, naive, trusting, credulous

gullible British  
/ ˈɡʌləbəl /

adjective

  1. easily taken in or tricked

"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

Other Word Forms


Etymology

Origin of gullible

First recorded in 1815–25; gull 2 + -ible


Explanation

If you are gullible, the joke is on you because you are easily fooled. It is thought that gullible might be derived from the verb gull, meaning "to swallow." This would be a funny coincidence as gullible describes an overly trusting person who tends to swallow the stories he hears whole. The related word, gull, can be used as a noun "don't be such a gull!" or as a verb "you can't gull me into believing that!"

Keep Reading on Vocabulary.com

Vocabulary lists containing gullible

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.

See Examples For:

First, he assumes that they’re as gullible as he is—that, since he believes the compliments they shovel his way, they’ll believe his shovelings too.

From Slate ● Sep. 10, 2026

Maybe Roher believes this is what our increasingly gullible, truth-challenged citizenry needs from an explanatory doc: a flashy, kindhearted reminder that we’re the change we need to be.

From Los Angeles Times ● Mar. 27, 2026

Professional and institutional investors turn positive on stocks at the beginning of a bull market, and gradually unload their appreciated equities to more gullible retail investors.

From MarketWatch ● Mar. 25, 2026

And the message-board-born concept of a “lolcow,” a gullible user who can be goaded into making a fool of themselves on a regular basis, definitely predated the music video.

From Salon ● Feb. 16, 2026

My father once said I was as gullible as a fish.

From "Walk Two Moons" by Sharon Creech

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