unproven - definition and synonyms

adjective 

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/ʌnˈpruːv(ə)n/
  1. not proved to be useful, safe, or capable of doing something

    an unproven treatment

    unproven new players

    1. a.
      not proved to be a fact or true

      an unproven concept

    2. b.
      legal used about something that has not been proved in a court of law