The Collaborative International Dictionary of English v.0.48:

ironfisted \i"ron*fist`ed\, iron-fisted \i"ron-fist`ed\, a.
   1. Closefisted; stingy; mean.
      [1913 Webster]

   2. Ruthless; tyrranical; allowing no opposition; as, an
      iron-fisted tyrant.
      [PJC] Iron Gate