uncertain

不確定的、沒把握的、拿不定主意的

She was uncertain whether to accept the job offer.

她不確定要不要接受這份工作。

未定的、不明的、難以預料的

The future of the whole project remains uncertain.

整個專案的未來仍然未定。

不穩定的、多變的

The weather in the mountains is uncertain at this time of year.

這個季節山區的天氣很不穩定。

不穩的、猶疑的

He took a few uncertain steps toward the door.

他腳步不穩地朝門口走了幾步。

明確地、毫不含糊地

She told him in no uncertain terms to leave her alone.

她明確地告訴他不要再來煩她。