Unbeknownst

He did it unbeknownst to me.

Unbeknownst to him, at the space hotel, there was a musically complimented Mexican restaurant surrounded by gigantic cages full of tropical parrots and other birds.

Unbeknownst to Tom, Mary was having it off with the milkman.

Sami and Layla continued their secret affair unbeknownst to their spouses.

Unbeknownst to Gunter, he was being followed by Rima and her men.

If we really knew that our "reality" were really a complex "illusion," would we value our existence less? Buddhists believe that all that we sense is "Māyā," a profound illusion that hides "reality." In the movie The Matrix, people live in a computer simulation unbeknownst to them, but a group of renegades find out. In physics, it is known that all the matter that we see is mostly empty space at closer view.

She got married, unbeknownst to her parents.

My fingers deftly flew across the keyboard taking diligent notes for hours on end (unbeknownst to me, this would be a harbinger of the times to come, as my fingers now seem perpetually connected to the keyboard day after day).

He went home early, unbeknownst to his mother.

Theon’s redemption scene convincingly threatens to kill him right there on the beaches of Dragonstone, dying for a good cause unbeknownst to anyone but the rapscallions who watched him die, but at last it swerves into something genuinely heroic.