The Collaborative International Dictionary of English v.0.48:
Wrongdoing \Wrong"do`ing\, n. Evil or wicked behavior or action. [1913 Webster]WordNet (r) 3.0 (2006):
wrongdoing n 1: departure from what is ethically acceptable [syn: error, wrongdoing] 2: activity that transgresses moral or civil law; "he denied any wrongdoing" [syn: wrongdoing, wrongful conduct, misconduct, actus reus]