adverb
- without the knowledge of someone; unknown to
Usage: typically followed by ‘to’
Examples
- Unbeknownst to her parents, she had been saving money for months.
- The company was making changes unbeknownst to its employees.
- Unbeknownst to the guests, the surprise party had been planned for weeks.
- He left the house unbeknownst to his roommates.
- Unbeknownst to the teacher, the students had already studied the material.
- The cat had been hiding in the basement unbeknownst to the family.