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Synonyms

gullible

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

adjective

  1. 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.

Gullible and “naturally athletic” Kyle, the pair’s better half, bears the hurt of the inexcusable disloyalty and brokenheartedly tries to move on.

From Los Angeles Times • Nov. 11, 2020

In 2008 Findlay wagered £80,000 on his horse Gullible Gordon to win at Exeter.

From The Guardian • Sep. 13, 2017

Gullible valedictorians apply only to be rejected because Chicago knows they won’t attend a safety school either way.

From New York Times • May 18, 2012

Gullible Verna, who’d believed she was in love.

From The New Yorker • Dec. 12, 2011

Mr. Ernest Hart had an article in the Century Magazine on "The Eternal Gullible," in which he gives the confessions of a professional hypnotic subject.

From Complete Hypnotism, Mesmerism, Mind-Reading and Spiritualism How to Hypnotize: Being an Exhaustive and Practical System of Method, Application, and Use by Alpheus, A.