unknown to

idiom

: without being known about by (someone)

Unknown to me, my partner was organizing a surprise party for my birthday.

Examples of unknown to in a Sentence

Recent Examples on the Web

The true reasons behind his decision to leave remain unknown to us, and only the player can explain. —Jay Harris, New York Times, 3 Jan. 2026

For decades, cosmologists have thought dark matter is some sort of exotic particle that was previously unknown to the Standard Model of particle physics. —Paul Sutter, Space.com, 26 Dec. 2025

If the question somehow makes it to the ballot, stand by for a barrage from these same parties known and unknown to the grand jury. —Howie Carr, Boston Herald, 20 Dec. 2025

Researchers studying the carcasses of bats in a cave system were astonished to find evidence that common rats have developed a method of catching and eating bats mid-flight—something previously unknown to science. —Popular Science Team, Popular Science, 17 Dec. 2025

Rhymes for unknown to

• amadou
• avenue
• ballyhoo
• baraboo
• barbecue
• barbeque
• bugaboo
• cabildo
• caribou
• cockatoo
• detinue
• devalue