leap in the dark

Idioms  

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]

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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 • Jun. 30, 2025

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

From Reuters • Feb. 2, 2022

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

From Washington Post • Dec. 16, 2021

Foreign policy would also be a leap in the dark.

From The Wall Street Journal • Jan. 28, 2016

Like the expiring Hobbes, more than two thousand years later, the grand old Athenian felt himself "taking a leap in the dark."

From Old Wine and New Occasional Discourses by Cross, Joseph