a leap in the dark

leap in the dark

A chance that one takes despite being uncertain of the consequences or outcome. I don't usually go on blind dates, but I took a leap in the dark and agreed to meet Sarah's friend for dinner.
See also: dark, leap

a leap in the dark

BRITISH
If you take a leap in the dark, you do something without knowing what the consequences will be. Voters have taken a leap in the dark by electing outsiders with little or no political experience. What I had before me wasn't a rational choice: it was a leap in the dark.
See also: dark, leap

a leap in the dark

a daring step or enterprise whose consequences are unpredictable.
See also: dark, leap

a leap in the ˈdark

an action or a risk that you take without knowing anything about the activity or what the result will be: The government is being accused of taking a leap in the dark as it prepares to radically change the education system.
See also: dark, leap
References in classic literature ?
In short, he must have a very contemptible opinion of her capacities, nay, every of her understanding, that, having but one case of her life, shall call that life away at once, and make matrimony, like death, be a leap in the dark.