Unbeknownst

The hidden treasure had been buried in the backyard, unbeknownst to the previous homeowners.

Unbeknownst to the public, the company had been involved in unethical business practices for years.

Unbeknownst to me, my sister borrowed my sweater.

Unbeknownst to her, the party was a surprise celebration for her birthday.

Unbeknownst to the athlete, he had broken the world record.

Unbeknownst to the audience, the play had a surprise ending.

The flowers were blooming beautifully, unbeknownst to the gardener.

Unbeknownst to the teacher, the students had already learned the material.

The treasure was hidden unbeknownst to the villagers.

Unbeknownst to the students, the test had been postponed until the following week.

Unbeknownst to me, my friends were planning a surprise party for my birthday.

The group had been meeting unbeknownst to their families.

Unbeknownst to the teacher, the students had a secret code language.

Unbeknownst to her, her husband had arranged a surprise party.

The treasure was buried deep in the forest, unbeknownst to the villagers.

Unbeknownst to her parents, she had been secretly taking dance classes for years.

The company was sold unbeknownst to its employees.

He unbeknownst to his roommate, uses his toothbrush.

Unbeknownst to the students, the teacher had planned a pop quiz.