The Collaborative International Dictionary of English v.0.48:

Unargued \Un*ar"gued\, a.
   1. Not argued or debated.
      [1913 Webster]

   2. Not argued against; undisputed. [Obs.] --Milton.
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   3. Not censured. [A Latinism. Obs.] --B. Jonson.
      [1913 Webster]