Source : Webster's Revised Unabridged Dictionary (1913)

Criminally \Crim"i*nal*ly\ (kr?m"?-nal-l?), adv.
   In violation of law; wickedly.

Source : WordNet®

criminally
     adv 1: in a shameful manner; "the garden was criminally neglected"
            [syn: {reprehensively}]
     2: in violation of the law; in a criminal manner; "the
        alterations in the document were ruled to be criminally
        fraudulent"