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unbeknownst to

unbeknownst to

19 8.9
Something that happens without someone's knowledge
  • idiom
translation icon : sin que lo supiera
  • Unbeknownst to me, my friends were planning a surprise birthday party.

I mean, we know for a fact that Laundry Service taped the conversation unbeknownst to me.

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Examples

  • Unbeknownst to his mother, his employer, his church and his friends, Mr. Weese is HIV-positive.

  • Edgar, the clerk in question, is in love with Rita, who unbeknownst to him, is living a double life.

    Academic text (2000)
  • So that right there I think caused some issues unbeknownst to me at the time.

  • Then unbeknownst to me, you suddenly get brought back on.

  • But unbeknownst to me, I was followed home by a secret agent of the police.

  • But unbeknownst to Bill, the problem has not been solved with the issue in his car.

  • We did accept their offer, but unbeknownst to them, we also purchased a second unit for ourselves off of Amazon.

  • And unbeknownst to us, we're running into all of this shenanigans.

  • Our little Arria had secret talents unbeknownst to us.

    Fiction book (1998)
  • Unbeknownst to him, Beckham had played his last game in the famous three lions Jersey.

Synonyms

unbeknownst
vsunbeknownst to
25 9.1

Happening without someone knowing about it

gives the same meaning as that phrasing but in a general phrase form
unbeknown
vsunbeknownst to
  • Archaic
1 9.1

Without someone knowing

expresses the same idea but is less common as the fixed phrasing

Antonyms

2.7

Knowing that something exists or is happening

How Known

well-known
253 1.0
known
2 1.0
unbeknownst to
19 8.9
unbeknownst
25 9.1
unknown
629 2.3

Surface Forms

Morphology

unbeknownst + to

The meaning 'without the knowledge of (someone)' is directly carried by 'unbeknownst' (occurring without someone's awareness) with 'to' simply marking the person affected; there is no idiomatic or metaphorical shift beyond this composition. A learner who knows both constituents can therefore infer the phrase's meaning.

Etymology

Unbeknownst to comes from old words that mean 'not' and 'known', with un- (not) and beknownst (known), so imagine a surprise done while someone does not know. So when something happens unbeknownst to someone, it means it happened 'without the knowledge of' that person.