unbeknown (adverb)

1. Unbeknown to the other characters, the protagonist had been secretly recording a documentary about their lives.

2. In the science fiction novel, the protagonist possesses a superpower unbeknown to him until he discovers it by accident.

3. As they walked through the haunted house, they were unaware of the lurking danger, unbeknown to them.

4. The magical world hidden behind the wardrobe remained unbeknown to the ordinary children until they stumbled upon it.

1. The hermit secretly resided in a cave unbeknown to the villagers, who believed it was a sacred site.

2. The enchanted forest revealed hidden treasures to adventurous travelers, unbeknown to the rest of the kingdom.

3. The haunting presence lurked in the old mansion, unbeknown to the unsuspecting family that moved in.

4. As a prank, Jake secretly replaced all the sugar with salt in the office kitchen, unbeknownst to his colleagues.