unbeknownst
un-be-knownst
adverb
Without the knowledge or awareness of a particular person or group.
"Unbeknownst to them, I had already departed."
Thesaurus
Synonyms: unbeknown
un-be-knownst
Without the knowledge or awareness of a particular person or group.
"Unbeknownst to them, I had already departed."
Synonyms: unbeknown