in the dark about (something)

in the dark about (something)

Uninformed about something; excluded from full knowledge or disclosure of something. The president was kept in the dark about the CIA's assassination attempt so that if things went sour and came to public light, she could claim plausible deniability. I don't fully trust John to keep our plan a secret, so I think it best that he be kept in the dark about it for now.
See also: dark
Farlex Dictionary of Idioms.
See also:
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • all for the best
  • a thing of the past
  • a slew of (something)
  • a bird in the hand