adj.(usually used with `to') occurring or existing without the knowledge of

"she had been ill for months, unbeknownst to the family"

同義詞：unbeknown(p)

adv.without someone's knowledge

"unbeknownst to me, she made all the arrangements"

同義詞：unbeknown

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That Swing: Poems, 2008–2016
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Confidence sets for partially identified parameters that satisfy a finite number of moment inequalities