adjective pan·de·mo·ni·ac \¦pandə¦mōnēˌak\
variants: less commonly


\-mänik\ or



Definition of pandemoniac

  1. 1 :  of or relating to or resembling Pandemonium :  infernal

  2. 2 :  having the character of a pandemonium :  riotous several hundred thousand hysterical … youths roaring pandemoniac approval — J. A. Morris, born 1904

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Origin and Etymology of pandemoniac

pandemonium + -ac (after demoniac) or -ic (after demonic) or -acal (after demoniacal)

Seen and Heard

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to cast off or become cast off

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