🇬🇧🇪🇸 gullible - crédulo : English Lesson

Meaning of "gullible" ("crédulo"), detailed definition, and a short video lesson below.

If someone is gullible, it means they believe almost anything people tell them, even when it’s a trick or a joke. A gullible person doesn’t stop to check if something makes sense first, so people can fool them very easily. Being kind and trusting is good, but if you’re too gullible, you might believe silly lies like “there’s a dragon in the bathroom” or “if you don’t do my homework, the floor will turn to lava for real.”

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

I told my gullible brother that hiccups are tiny earthquakes inside your body, and he started apologizing to his organs.

I told my gullible cousin that broccoli makes you invisible, and he waved his empty fork around shouting, “Can you still see me?”

The gullible girl believed that if she jumped fast enough, she could dodge the rain and stay dry between the drops.

The gullible student believed that eraser crumbs are baby erasers and tried to raise them in a pencil box.

I told my gullible cousin that the moon was a giant cheese ball, and he asked if mice had a space program.

A gullible girl saw a painted rock labeled "gold". The gullible girl picked it up, eyes wide. Her gullible friend grinned and said it was real gold; the gullible girl ran to buy milk with it. At the shop, the gullible girl found it was only paint. She laughed, gullible but smiling, and learned to check.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.