Unbeknown-Unbeknownst | Commonly Confused Words
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Master confusing words with ease

Unbeknown vs. Unbeknownst

Unbeknown

/ˌʌnbɪˈnəʊn/
Something that is unknown to someone or something happening without someone's knowledge.

Examples:

She went to the party unbeknown to her parents.There was a surprise waiting, unbeknown to the guests.Unbeknown to us, the plan was already in action.

Synonyms:

Antonyms:

Unbeknownst

Not known or unnoticed by someone

Examples:

Unbeknownst to him, they planned a surprise party.She slipped away, unbeknownst to the bustling crowd.Unbeknownst to many, the artist lived in seclusion.

Synonyms:

Antonyms:

Ways to tell them apart:

etymology
  • Both words mean without the knowledge of someone and are often followed by to.
  • Unbeknownst is more commonly used in modern English than unbeknown, especially in American English.
  • Some grammar purists might argue unbeknown is the more correct form, as it is the older usage.
  • Unbeknownst contains an additional st' at the end, which might be easier to use in informal settings, adding a soft tone to the word.
  • Remember, both are perfectly acceptable to use, but context and audience could inform which one might be more appropriate.
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