🇬🇧🇨🇳 serious - 严肃的 : English Lesson

Meaning of "serious" ("严肃的"), detailed definition, and a short video lesson below.

When someone is serious, they are very focused and not joking around. A serious person pays close attention, speaks carefully, and acts like something is important, not silly or playful.

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

Grandma gave me a serious warning about sugar while secretly eating cookies behind the fridge door.

My little cousin asked in a very serious voice, “If tomatoes are fruits, is ketchup a smoothie?”

My sister made a serious promise to stop bothering me, which lasted exactly three and a half seconds.

The teacher was serious about no phones in class, so even her calculator looked nervous.

I tried to look serious in my school photo, but my hair exploded into a massive cowlick at the exact second.

A small boy cries. His toy is broken. His friend takes glue with a serious face. She is serious and does not play. She looks serious and gives a serious nod. Her hands are small and sure. The boy watches with a serious look. The toy is fixed. They both smile at the end.

Learn the meaning of serious with our educational learning resources. Download a colorful poster, print engaging games, and enjoy an easy story where the word serious appears in context. 👍

This word is at the A2 level, which means it’s useful for simple, everyday situations. You might use it when shopping, traveling, or talking about your hobbies. Words at this level help you build confidence in practical, routine conversations.

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.