🇬🇧🇨🇳 informal - 非正式 : English Lesson

Meaning of "informal" ("非正式"), detailed definition, and a short video lesson below.

Informal means something that is relaxed, casual, and not following strict rules. When you wear jeans to a barbecue instead of a suit, that’s informal. When you say “Hey, what’s up?” instead of “Good afternoon, how are you?” you’re being informal. It’s the opposite of fancy or formal situations, like weddings or important meetings. Informal things are more laid-back, friendly, and not as strict.

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

The informal dress code at camp meant everyone looked like they had just rolled out of bed.

My dog takes an informal approach to rules—he ignores them completely!

At the informal picnic, Uncle Bob wore flip-flops… and forgot to bring food.

I wrote an informal email to my teacher that started with, “Yo, what’s the homework?”

I asked for an informal dinner, but I wasn’t expecting sandwiches shaped like dinosaurs!

Tom makes an informal party at home. He writes an informal note: "Come as you are." The friends wear old shirts and no shoes. They sit on the floor, eat cake, and laugh in an informal way. The kids hug, smile, and say, "This is so informal and fun." All go home happy from the informal time.

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.