GULLIBLE Synonyms: 45 Similar and Opposite Words

gullible

adjective

ˈgə-lə-bəl

variants also gullable

as in naive

readily taken advantage of wished that his brother weren't so gullible as to believe he could win the fixed carnival game if he kept playing it

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Example Sentences

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.

Recent Examples of gullible 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 Rather than feeling triumphant at how believable ELIZA was, Weizenbaum was depressed by how gullible people seemed to be. —

Jeremy Kahn, Fortune, 26 Aug. 2025 Teenagers, despite our best efforts to educate them in open-minded ways, are gullible and therefore vulnerable. —

Eli Amdur, Forbes.com, 11 Aug. 2025 See All Example Sentences for gullible

Recent Examples of Synonyms for gullible

Adjective

What became their sound, more so than instrumentation, was this naive form of optimism.

— Jazz Tangcay, Variety, 16 Apr. 2026
Any certainty—my certainty—about most guys being good guys seems naive.

— Literary Hub, Literary Hub, 15 Apr. 2026