in the dark

Idioms  

1. In secret, in concealment, as in This agreement was concluded in the dark . [Early 1600s]

2. In a state of ignorance, uninformed, as in I was in the dark about their plans . This metaphor often appears in the locution keep someone in the dark , meaning “deliberately keep someone uninformed,” as in They kept me in the dark about their plans . [Late 1600s] For an antonym, see in the know .

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Example Sentences

"There are attacks every week. Just when power is restored, all our schedules are disrupted again, we are left without electricity, without stability, sitting in the dark for two or three days," she said.

From Barron's

A power outage External link in San Francisco on Sunday left about 130,000 homes and businesses in the dark.

From Barron's

Roughly 110,000 PG&E customers have service again following a major power outage Saturday in San Francisco that left homes in the dark, stalled traffic and shut down restaurants, shops and holiday lighting displays.

From Los Angeles Times

Out of public view, the board unanimously approved a $3-million settlement with provisions intended to keep the community in the dark forever.

From Los Angeles Times

This was in great part due to an 28 April blackout that left homes, businesses, government buildings, public transport, schools and universities in the dark across Spain and neighbouring Portugal for several hours.

From BBC