(usually used with `to') occurring or existing without the knowledge of; "a crisis unbeknown to me"; "she had been ill for months, unbeknownst to the family"
The form unbeknownst is also used. If something happens unbeknown to you or unbeknownst to you, you do not know about it. I am appalled that children can mount up debts unbeknown to their parents Unbeknownst to her father, she began taking dancing lessons. unbeknown to sb without that person knowing about it
(usually used with `to') occurring or existing without the knowledge of; "a crisis unbeknown to me"; "she had been ill for months, unbeknownst to the family
(usually used with `to') occurring or existing without the knowledge of; "a crisis unbeknown to me"; "she had been ill for months, unbeknownst to the family"