不明bùmíngTop 4000Meanings1. not clear2. unknown3. to fail to understandCharacters used不no明brightExamples2起火qǐhuǒ原因yuányīn不明bùmíng。The cause of the fire is not known.嫌疑犯xiányífàn目前mùqián性别xìngbié不明bùmíng。The suspect's gender is currently unknown.