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unbeknownst

unbeknownst

25 9.1
Happening without someone knowing about it
  • adjective
  • /ˌʌnbɪˈnoʊnst/
translation icon : sin que lo supiera
  • But unbeknownst to me, I was followed home by a secret agent of the police.

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

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Examples

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

    Academic text (2000)
  • And unbeknownst to us, we're running into all of this shenanigans.

  • 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.

  • When he gets up, unbeknownst to him, I'll follow.

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

  • Someone called the cops and had me arrested because unbeknownst to me, the park closed at 10 p.m.

    Blog text (28)
  • Unbeknownst to everyone, that final night before the Christmas deadline, I offered him my Area 51 code, and he accepted.

  • Unbeknownst to him, Beckham had played his last game in the famous three lions Jersey.

  • Unbeknownst to her, a surprise party was being planned for her birthday.

Synonyms

secretly
vsunbeknownst
261 1.4

In a way that other people do not know

emphasizes absence of awareness rather than intentional concealment
unnoticed
vsunbeknownst
57 2.5

Other people do not see or pay attention to it

means someone is unaware even if the event is quiet or small
in secret
vsunbeknownst
56 2.5

In a way other people do not know

focuses on lack of knowledge regardless of deliberate hiding
undetected
vsunbeknownst
37 4.6

Not found or noticed by others

refers to someone not knowing rather than technical failure to find
unbeknownst to
vsunbeknownst
19 8.9

Something that happens without someone's knowledge

is the single-word variant used the same way in sentences
unobserved
vsunbeknownst
3 5.2

Not seen or noticed by anyone

stresses someone not knowing rather than only not being seen
unbeknown
vsunbeknownst
  • Archaic
1 9.1

Without someone knowing

is the more common modern form for that same idea
unperceived
vsunbeknownst
1 8.2

Other people do not notice someone or something

points to lack of personal knowledge rather than sensory omission

Antonyms

2 1.0

Familiar to many people and easy to identify

Idioms

Something that happens without someone's knowledge

How Known

well-known
253 1.0
known
2 1.0
unbeknownst
25 9.1
obscure
84 7.0
unknown
629 2.3

Surface Forms

unbeknownst positive

Morphology

unbeknownst = beknownst (semi-transparent) = un + beknownst

The negative prefix 'un-' is transparent, but the base 'beknownst' is archaic (be + known) and not fully productive, so the meaning is only partly predictable for learners.

Etymology

The word unbeknownst comes from the parts un- ('not') and be- + known ('to know'), so it means 'not known'. That's why we use unbeknownst when something happens 'without someone knowing'.