Definition of unbeknownst
1 : happening or existing without the knowledge of someone specified —usually used with to unbeknownst to us rumors were flying
2 : unknown
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Examples of unbeknownst in a sentence
unbeknownst to me, my mother was planning a party
Recent Examples of unbeknownst from the web
That sentiment would surely have horrified those who, unbeknownst to me at the time, had spent the preceding decade battling my educators and their ilk on the history fields of the culture wars.
This idea dates back to the early twentieth century, when two very different groups of scientists made discoveries that, unbeknownst to them, were closely connected.
But unbeknownst to him, the older generation of Hardings had given up any claim to the house in 2012, in return for a little over 30,000 euros, about $33,000.
Unbeknownst to most viewers, this took months of planning, including the development of new technology just for this one performance.
Tragically, and unbeknownst to Detmer, Barton was using his and other clients' investment money to cover debts from other misguided deals.
Criminalists’ using their own semen was a convenient, common shortcut, but one that, unbeknownst to them at the time, presented a high risk of contamination.
Maybe, unbeknownst to you, your husband's mother was a horrible parent.
Martine, unbeknownst to Bill and his wife, feared dogs the way other people fear the abyss.
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Did You Know?
Unbeknownst derives from beknown, an obsolete synonym of known. But for a word with a straightforward history, unbeknownst and its older and less common variant unbeknown have created quite a flap among usage commentators. Despite widespread use (including appearances in the writings of Charles Dickens, A.E. Housman, and E.B. White), the two words have been called everything from "obsolete" to "vulgar." Our evidence, however, shows that both can be considered standard.
Origin and Etymology of unbeknownst
1un- + obsolete English beknown known; unbeknownst, irregular from unbeknown
First Known Use: 1636
UNBEKNOWNST Defined for Kids
Seen and Heard
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