Maniacal

прилагательное помешанный, безумный; маниакальный Синоним(ы): frantic

Большой англо-русский словарь

Maniacal

also maniac adjective 1. affected with or suggestive of madness Example: maniacal laughter 2. characterized by ungovernable excitement or frenzy; frantic Example: a maniacal mobmaniacally adverb

Merriam-Webster's Collegiate Dictionary