leap in the dark

1. An act whose results cannot be predicted. For example, Given today's high divorce rate, he considered marriage a leap in the dark. [Late 1600s]

Example Sentences

He added: "Until we know and understand the impact on them we shouldn't be taking what I see as a leap in the dark."

From BBC

Bellocchio, who first competed for the festival's top prize in 1980 with "A Leap in the Dark," received an honorary Golden Palme recognising his cinematic contributions in 2021.

From Reuters

The prospect of Draghi switching roles was "a leap in the dark" they were not prepared to take.

From Reuters

At the moment, it is a leap in the dark.

From Washington Post

“Crowdfunding is not shopping — people generally understand that now — but it also shouldn’t be a leap in the dark, and it certainly can’t be scamming,” wrote Will Haines, Indiegogo’s vice president of product and customer trust, in a blog post last week.

From Seattle Times