In ignorance; without information.
В неведении; неосведомленность.
If the government controls the news, it can keep people in the dark on any topic it chooses.
John was in the dark about the job he was being sent to.
Mary had a letter from Sue yesterday, but she was left in the dark about Sue's plans to visit her.
The personnel were kept in the dark about the merger until the last minute.
Весь персонал до последней минуты держали в неведении об объединении.