anybody's/anyone's guess

noun

: something that is very uncertain or that no one knows

What causes these changes is anybody's guess.

It's anyone's guess what his next book will be about.

Examples of anybody's/anyone's guess in a Sentence

Recent Examples on the Web

When the first person will show up is anyone's guess. —Susan Selasky, Detroit Free Press, 12 Jan. 2024

And whether the case will go to trial before the next election this November is anybody's guess. —Josh Meyer, USA TODAY, 20 Mar. 2024

How and where the medals will be presented is anyone's guess. —Eddie Pells, USA TODAY, 29 Jan. 2024

Just who's holding the bag in the image above is anyone's guess for now. —Wesley Stenzel, EW.com, 16 Jan. 2024

Given the decay of Russia's space program, Orel probably won't ever transport cosmonauts into space, and when the Angara rocket will actually launch from Vostochny is anyone's guess. —Stephen Clark, Ars Technica, 29 Sep. 2023

When it will be covered in ice this year is anyone's guess. —Paul A. Smith, Journal Sentinel, 4 Jan. 2024

Early access to what is still anyone's guess, because there is no other information provided. —Kathleen Walsh, Glamour, 24 Oct. 2023

Infotainment and Connectivity A lot can change in the world of in-car infotainment between now and 2026, so details about what might be offered in the i8 M are anyone's guess. —Drew Dorian, Car and Driver, 18 Feb. 2023