Source : Webster's Revised Unabridged Dictionary (1913)

Managerial \Man`a*ge"ri*al\, a.
   Of or pertaining to management or a manager; as, managerial
   qualities. ``Managerial responsibility.'' --C. Bront['e].

Source : WordNet®

managerial
     adj : of or relating to the function or responsibility or activity
           of management