unprecedented and unprecedented 无先例的对比
precedented case 有先例的案例
legally precedented 法律上有先例的
historically precedented 历史上有先例的
precedented decision 有先例的决定
clearly precedented 明确有先例的
not precedented 无先例的（常与否定形式对比）
1. The court ruled that the case was precedented in earlier judgments.
法院裁定该案件在早期判例中已有先例。
2. This situation is precedented in legal history.
这种情况在法律史上是有先例的。
3. The decision was considered precedented by experts.
专家认为这一决定是有先例可循的。
4. Few people realized the event was precedented.
很少有人意识到这一事件是有先例的。
A: Is this decision precedented in our company?
A：这个决定在我们公司有先例吗？
B: Yes, it is precedented by several past cases.
B：是的，这在过去几个案例中是有先例的。
1) 指具有先例或历史案例支持的情况
2) 常用于法律或正式讨论中
3) 与“unprecedented（无先例的）”相对
4) 表示可以参考过去经验的情形
1. 有先例的；已有类似案例的
e.g. The ruling was precedented in earlier court cases.
该裁决在早期法庭案件中已有先例。
adjective
1. Having a precedent; based on or supported by earlier examples or cases.
Synonym: established, documented