{adj. phr.} 1. In ignorance; without information. * /John was in the dark about the job he was being sent to./ * /If the government controls the news, it can keep people in the dark on any topic it chooses./ * /Mary had a letter from Sue yesterday, but she was left in the dark about Sue's plans to visit her./ Contrast: IN THE KNOW. See: WHISTLE IN THE DARK.
IN THE DARK
Meaning of IN THE DARK in English
Dictionary of English idioms . Словарь английских идиом. 2012