不明 (bù míng) — to fail to understand; to be unclear about; (formal) unknown; not clear (e.g., of whereabouts, cause)

Definición

Ejemplos

• 他对事情的真相不明。
  Tā duì shì qing de zhēn xiàng bù míng.
  He is unclear about the truth of the matter.
• 那名失踪的学生至今下落不明。
  Nà míng shī zōng de xué shēng zhì jīn xià luò bù míng.
  That missing student's whereabouts are still unknown.
• 这场火灾的起火原因不明。
  Zhè chǎng huǒ zāi de qǐ huǒ yuán yīn bù míng.
  The cause of the fire is unknown.