不一定

bùyīdìng

adverb HSK 2

Meanings

他不一定来。

Tā bùyīdìng lái.

He might not come.

贵的东西不一定好。

Guì de dōngxi bùyīdìng hǎo.

Expensive things are not necessarily good.

明天不一定下雨。

Míngtiān bùyīdìng xiàyǔ.

It will not necessarily rain tomorrow.

usage

不一定 softens a negative statement — it means 'maybe yes, maybe no' rather than a flat no.

mistakes

Do not confuse with 一定不 (definitely not), which is much stronger.

不 bù

一 yī

定 dìng