🇬🇧🇪🇸 hazardous - peligroso : English Lesson

Meaning of "hazardous" ("peligroso"), detailed definition, and a short video lesson below.

When something is risky, unsafe, or could cause injury, damage, or trouble. It could be a place, an activity, or even a situation that you need to be careful around because it’s hazardous.

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

Mom says my room is so messy it’s hazardous to her health just looking at it.

My dad’s dancing at weddings is hazardous to everyone’s eyesight.

Leaving me alone with a jar of peanut butter is hazardous—for the peanut butter.

The spaghetti fight at lunch was hazardous, especially for anyone wearing white.

Grandpa’s “famous chili” is hazardous because it could make steam come out of your ears.

Sam saw a hazardous leak near the school gate: smoky, hazardous, sharp, and bright. The teacher shouted that the puddle and the air were hazardous, and Sam backed away from the hazardous steam. A dog sniffed the hazardous edge and barked. The teacher called the fire crew; Sam hugged her knees, shaking but safe.

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.