gullible
Americanadjective
adjective
Other Word Forms
Etymology
Origin of gullible
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!"
Vocabulary lists containing gullible
Tricky Terms for April Fool's Day
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Walk Two Moons
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
100 SAT Words Beginning with "G"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
Only one of them, Sean “Poopies” McInerney, a surf bro so gullible that I’m not sure he’s capable of informed legal consent, fits into “Best and Last” like a well-worn punching bag.
From Los Angeles Times • Jun. 26, 2026
"People say that victims are gullible but the scams are put together well", they are very "sophisticated", said a source close to the investigation.
From Barron's • Jun. 5, 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
Or is it more like Freddy Krueger, coming back to haunt the gullible?
From The Wall Street Journal • Mar. 22, 2026
“Yeah, I know that’s what you told your mom, but I’m not as gullible as she is.”
From "The Benefits of Being an Octopus" by Ann Braden
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
