adj.未登记的，未注册的

The car is unregistered, and the owner is now facing legal consequences.
这辆车未注册，车主现在正面临法律后果。
She tried to sell the stolen artwork, but it was an unregistered item, so she couldn't find a buyer.
她试图出售被盗的艺术品，但那是一件未注册的艺术品，所以找不到买家。
As an unregistered voter, he can't participate in this year's election.
作为一个未注册选民，他无法参加今年的选举。
The domain name has been seized due to its unregistered status.
由于该域名未注册，已被查封。
The suspect's identity remains unknown because his fingerprints were not found in the database – he's an unregistered offender.
嫌疑人的身份仍然不明，因为数据库中没有他的指纹记录——他是个未注册的罪犯。
He was caught driving without a license or insurance, making him an unregistered driver.
他被发现无证驾驶且无保险，因此他是一个未注册的驾驶员。
The software you're using is unregistered; you'll need to purchase a license.
你正在使用的软件是未注册的，你需要购买一个许可证。
The company's website is unregistered, indicating that they may be operating illegally.
公司的网站未注册，这可能意味着他们可能在非法运营。
Unregistered firearms pose a significant threat to public safety.
未注册的枪支对公共安全构成重大威胁。
The property is listed as unregistered, meaning there's no clear ownership record.
这块房产列为未注册，表示没有明确的所有权记录。