Source : Webster's Revised Unabridged Dictionary (1913)

Mannish \Man"nish\, a. [Man + -ish: cf. AS. mennisc, menisc.]
   1. Resembling a human being in form or nature; human.
      --Chaucer.

            But yet it was a figure Most like to mannish
            creature.                             --Gower.

   2. Resembling, suitable to, or characteristic of, a man,
      manlike, masculine. --Chaucer.

            A woman impudent and mannish grown.   --Shak.

   3. Fond of men; -- said of a woman. [Obs.] --Chaucer. --
      {Man"nish*ly},adv. -- {Man"nish*ness}, n.

Source : WordNet®

mannish
     adj 1: resembling or imitative of or suggestive of a man rather
            than a woman; "a mannish stride"
     2: characteristic of a man as distinguished from a woman; "true
        mannish arrogance"