gullible

[guhl-uh-buhl] / ˈgʌl ə bəl /

ADJECTIVE

naive, trusting

Synonyms

STRONGEST

foolish unsophisticated unsuspecting wide-eyed

WEAK

being a sucker believing biting credulous easily taken in easy mark falling hook line and sinker green innocent kidding oneself mark silly simple sucker susceptible swallowing whole taken in taking the bait trustful tumbling for unskeptical

Antonyms

WEAK

astute discerning knowledgeable perceptive suspicious unbelieving untrusting wise

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.

Or is it more like Freddy Krueger, coming back to haunt the gullible?

From The Wall Street Journal • Mar. 22, 2026

"I was naive, foolish, and gullible to put any trust in Jeffrey Epstein," he said.

From BBC • Feb. 18, 2026

The fundamental problem is that hopeful investors are too often gullible investors.

From MarketWatch • Feb. 6, 2026

Maybe I would have too — I’m really gullible.

From Los Angeles Times • Dec. 18, 2025

“Oh, is that all I That won’t be very much longer then, considering that you’re so gullible and brave and that I am already such an old, old man.”

From "Catch-22" by Joseph Heller

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