unwitnessed

adjective
un·​witnessed | \ "+\

Definition of unwitnessed

1 : not discerned by the senses : unperceived trifles, unwitnessed with eye or ear— Shakespeare
2 : not bearing the signature of a witness an unwitnessed legal document

History and Etymology for unwitnessed

Middle English, from un- entry 1 + witnessed, past participle of witnessen to witness

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