Definition of "unsigned" []

• Not accepting negative numbers; having only a positive absolute value. (adjective)
• Lacking a signature, unendorsed. (adjective)

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• "I'm finding it really fresh and compelling (even in unsigned form) 10: 30 AM"
• "Speaking of the draft, the most gifted and accomplished first-round pick still unsigned is Stanford right fielder/quarterback Mark Borchard, drafted by the White Sox."
• "All the precautions – the unsigned emails, the code words, the warnings – they all made sense now."