一定

yīdìng

adverb HSK 3 #204

Meanings

1 surely
2 certainly
3 definitely

Characters

fixed; certain; decided

Examples

HSK 1

明天一定会下雨。

Míngtiān yīdìng huì xiàyǔ.

It will definitely rain tomorrow.

HSK 1

她一定是中国人。

Tā yīdìng shì Zhōngguórén.

She must be Chinese.

HSK 2

你一定要来啊！

Nǐ yīdìng yào lái a!

You must come!

Tips

grammar

一定 can express certainty (一定会, will definitely) or obligation (一定要, must). It's negated as 不一定 (not necessarily).

Stroke Order

一 yī

定 dìng