不定

shì qing hái bù dìng huì zěn me yàng ne

事情还不定会怎么样呢。

It's hard to predict how things will turn out.

zhàn dòu qián xiàn de shèng fù bù dìng

战斗前线的胜负不定。

The outcome of the battle at the frontline was uncertain.

tā jiāng lí kāi yī duàn shí jiān qī xiàn bù dìng

他将离开一段时间，期限不定。

He will be away for the indefinite future.

bù dìng de hú miàn

不定的湖面

a fluky lake surface

chuán shēn yáo bǎi bù dìng ràng wǒ gǎn dào ě xin

船身摇摆不定，让我感到恶心。

The swaying motion of the ship was making me feel seasick.