Definition of 'maniacal'. maniacal (mÉnaÉªÉkÉl ) If you describe someone's behaviour as maniacal, you mean that it is extreme, violent, or very determined, as if the person were insane. He was almost maniacal in his pursuit of sporting records.
Throughout his career, Clooney has won two Academy Awards, one for Best Supporting Actor for his role in Syriana and one for Best Picture as one of the producers for Argo, as well as a BAFTA and a Golden Globe.
Which actor has had the most Academy Award nominations? Jack Nicholson holds the Academy Awards record as the  most-nominated male actor with 12. He has won three times, which  ties him with Daniel Day-Lewis and Walter Brennan foâ¦r most wins by  a male actor.