尚未

尚未 means 'not yet' or 'still not.' It is used to indicate that an action or state has not occurred up to the present moment. Unlike '还没有,' which is more commonly used in spoken language, 尚未 is slightly more formal and often appears in written Chinese.

The character 尚 (shàng) originally meant 'still' or 'yet,' while 未 (wèi) means 'not yet' or 'not.' Together, they form a compound that emphasizes the ongoing absence of an action or condition.

尚未成 is frequently used in news, official documents, and formal writing to describe situations that have not been resolved or completed. It is also used in everyday conversation, especially when emphasizing the continuation of a state or process.