s. not yet proved or subjected to testing
a. 未经试验的, 未经考验的
1. The new software is still untested and may have some bugs.
这个新软件仍然未经测试，可能会有一些漏洞。
2. The scientist decided to conduct experiments on the untested theory.
这位科学家决定对未经测试的理论进行实验。
3. Many untested products can be risky for consumers.
许多未经测试的产品对消费者来说可能是有风险的。