happening, done, or chosen by chance, rather than according to any plan

We need a theory that takes into account the aleatory nature of history. 我们需要一种考虑历史偶然性的理论。

I can list names of poets whom I consider significant, but any such list is somewhat aleatory. 我可以列出我认为重要的诗人的名字，但任何这样的名单都具有偶然性。

Aleatory music, art, etc. involves some parts that are chosen by chance, for example by a computer or by a performer.

John Cage has been a key proponent of aleatory music. 约翰·凯吉是机率音乐的主要支持者。

He remarks that aleatory experiments in writing risk being more interesting to the writer than to the reader. 他说到作者比读者对随机写作实验的风险更感兴趣。

An aleatory contract (= a legal agreement) relates to an uncertain event that may or may not happen or whose result someone cannot control.

An insurance policy is a very common type of aleatory contract. 保险合同是一种非常常见的射幸合同。