Source : Webster's Revised Unabridged Dictionary (1913)

Ironical \I*ron"ic*al\, a. [LL. ironicus, Gr. ? dissembling: cf.
   F. ironique. See {Irony}.]
   1. Pertaining to irony; containing, expressing, or
      characterized by, irony; as, an ironical remark.

   2. Addicted to the use of irony; given to irony. --
      {I*ron"ic*al*ly}, adv. -- {I*ron"ic*al*ness}, n.

Source : WordNet®

ironically
     adv 1: contrary to plan or expectation; "ironically, he ended up
            losing money under his own plan"
     2: in an ironic manner; "she began to mimic him ironically"