c. 1300, "of indeterminate time or occurrence," from un- (1) "not" + certain (adj.). Meaning "not fully confident" is recorded from late 14c. (implied in uncertainty). Related: Uncertainly.
雙語例句
1. Students all over the country are facing an uncertain future.
全國各地學生前途未卜。
來自柯林斯例句
2. The sandbank was uncertain, like quicksand under his feet.
那個沙壩并不穩固，他腳下如同踩著流沙一般。
來自柯林斯例句
3. For a minute he looked uncertain, and then recovered his composure.
有一小會兒他看上去有些遲疑不定，之后又恢復了鎮定。
來自柯林斯例句
4. The future for manned space flight is looking increasingly uncertain.
載人宇宙飛行的前景看上去充滿了越來越多的變數。
來自柯林斯例句
5. He stopped, uncertain how to put the question tactfully.