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| un·be·known [ ùnbi nṓn ] or un·be·knownst [ ùnbi nṓnst ] |
adjective |
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| Definition: |
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1. without somebody knowing: happening without a particular person knowing about it
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2. not known to somebody: not known or familiar to somebody
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adverb |
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| Definition: |
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without being seen: without being noticed or seen by anybody
  slipped away unbeknownst
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| [Mid-17th century. <un- + beknown, past participle of obsolete beknow "know thoroughly" <know] |
