maniacally
Adverb
Meaning
in a maniacal manner or to a maniacal degree
Source: WordNetSynonyms
Antonyms
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he was maniacally obsessed with jealousy
Both enjoy solving problems and cases as maniacally as possible, often with complete disregard for the law.
He then rams his head into the mirror and, while laughing maniacally, repeatedly mocks his earlier question about Annie's condition.
While scouting the Imperial base on Endor, Paploo decided to make a risky gambit and steal one of the Imperial speeder bikes parked nearby, screaming maniacally as he did so.
The "laughing room" scene, where all the objects in the room seemingly come to life and begin to cackle maniacally along with Ash, came about after Spiegel jokingly used a gooseneck lamp to visually demonstrate a Popeye -esque laugh.
When asked about his fate, Secretary of State Hillary Clinton cackled maniacally: "We came, we saw, he died."