Spanish vocabulary · Intermediate

How to Say Gullible in Spanish: Crédulo

Crédulo · adjective · KREH-doo-loh

Gullible in Spanish is crédulo, an adjective describing someone who is easily deceived or too trusting.

Crédulo is pronounced KREH-doo-loh, with the stress on the first syllable.

No seas tan crédulo, esa oferta es demasiado buena para ser verdad.

Don't be so gullible, that offer is too good to be true.

Gullible in Spanish: Quick Reference

Below are the most common Spanish words for gullible, with pronunciation and regional usage notes.

SpanishEnglishPronunciationRegion / Register
crédulogullibleKREH-doo-lohDefault, widely understood
ingenuogullibleused more broadly across Latin America

How Native Speakers Use Crédulo

Real example sentences across three contexts you'll actually run into.

Warning a friend

Mi hermano es muy crédulo y siempre le engañan por teléfono.

My brother is very gullible and they always trick him over the phone.

Describing a personality trait.

Reflecting on past behavior

Fui demasiado crédula cuando me prometieron ese trabajo.

I was too gullible when they promised me that job.

Feminine form crédula.

Giving advice

No te creas todo lo que lees en internet, no seas ingenuo.

Don't believe everything you read online, don't be naive.

Using the synonym ingenuo.

Avoid These Mistakes When Using Crédulo

Inventing a false cognate

Incorrect: Ella es muy gulible.

Correct: Ella es muy crédula.

Gulible does not exist in Spanish; use crédulo/a or ingenuo/a.

Wrong gender agreement

Incorrect: María es crédulo.

Correct: María es crédula.

The adjective must agree with the feminine subject: crédula.

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Why word lists alone don't stick

Memorizing a translation feels productive, but most learners forget 70% of what they studied within 48 hours. Vocabulary needs spaced repetition AND real-world exposure to transfer to long-term memory.

See Crédulo used by native speakers

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Common Questions About Gullible in Spanish

How do you say gullible in Spanish?
The most direct translation is crédulo (KREH-doo-loh), an adjective that changes to crédula for feminine subjects.
What is the difference between crédulo and ingenuo?
Crédulo emphasizes being easily deceived, while ingenuo carries a broader meaning of naivety or innocence without necessarily implying deception.
Can you use crédulo in formal writing?
Crédulo works perfectly in formal registers—you will find it in journalism, academic texts, and legal contexts when describing someone who is easily misled.