I shudder/dread to think

I dread to think

It is too worrying or unpleasant for me to think about something that might happen or might have happened. I dread to think what my boss will say when I tell him I lost our biggest client.
See also: dread, think

I shudder to think

It is too worrying or unpleasant for me to think about something that might happen or might have happened. I shudder to think what my boss will say when I tell him I lost our biggest client.
See also: shudder, think
Farlex Dictionary of Idioms.

I shudder/dread to ˈthink (how, what, etc....)

(informal, often humorous) I am afraid to think or ask myself about something, because the answer might be terrible or unpleasant: I shudder to think when he last had a bath. ‘How much more work is there?’ ‘I dread to think!’
See also: dread, shudder, think
Farlex Partner Idioms Dictionary
See also:
  • dread
  • I dread to think
  • I shudder to think
  • shudder
  • think out of the box
  • think back
  • go against the flow
  • What are you on?
  • never in a month of Sundays
  • What color is the sun in your world?