0 without a particular person knowing:
Unbeknownst to her, circumstances are such that it is impossible for her to refrain from embezzling from her employer.
Unbeknownst to her, in her early twenties, she was at the pinnacle of her career.
Unbeknownst to the knight, the wife whom he has never seen becomes his faithful page.
And thirdly, women have a different type of intelligence unbeknownst to men, mainly construed as intuitive or emotional knowledge.
Entirely unbeknownst to him, this object he creates also has various other features : for example, it is the only sandwich within three miles.
For listed private firms, it would most likely also be an indication of a principal-agent problem that allowed management to pursue non-profit maximizing goals unbeknownst to the stockowners.
If an apparently identical forest fire was, unbeknownst to you, started by the tribe in the next valley, you and the other animals will feel pain.
There could be no possibility of dawn raids and take-overs of companies unbeknownst even to the directors.