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
  • Unbeknown is a less common variant compared to unbeknownst.
  • Both words mean the same thing but choosing one over the other often depends on regional preference with unbeknownst being more popular in American English.
  • Think of unbeknownst as an evolved form of unbeknown in everyday speech.
  • Unbeknownst has an extra st, which might make it feel more complete or formal in some contexts.
  • Unbeknown without the st might feel slightly more archaic or less formal.
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