fly blind

1. Feel one's way, proceed by guesswork, as in There are no directions for assembling this furniture, so I'm flying blind. This hyperbolic expression dates from World War II, when it was used by pilots who could not see the horizon and therefore had to rely on instruments. It was transferred to broader use soon afterward.

Example Sentences

Without that information, said Angela Rasmussen, a virologist at the University of Saskatchewan’s Vaccine and Infectious Disease Organization in Canada.”we’re flying blind.”

From Los Angeles Times

At this point, everyone is flying blind with just a few months until the first presidential ballots are cast.

From BBC

But polling wise, it's a lot of flying blind.

From Salon

“There’s next to no data” on people with depression, bipolar disorder or other mental illnesses taking semaglutide, he said — and until there’s more evidence, “you’re sort of flying blind.”

From Seattle Times

“Without that information, it feels like we’re flying blind,” Judge Thomas Wilson said.

From Seattle Times