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See more synonyms for phrenetic on Thesaurus.com
adjective Also phre·net·i·cal.
  1. frenetic.
  2. filled with extreme excitement; fanatic; frenzied.
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  1. a phrenetic person.
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Origin of phrenetic

1325–75; < Latin phrenēticus < Late Greek phrenētikós, Greek phrenītikós frenzied (see phrenitis, -ic); replacing Middle English frenetike < Anglo-French < Latin as above; cf. frenetic
Related formsphre·net·i·cal·ly, adverbphre·net·ic·ness, nounnon·phre·net·ic, adjectivenon·phre·net·i·cal·ly, adverbsem·i·phre·net·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for phrenetic

Historical Examples

  • Yet here I sit, as yet unimmolated on the altar of phrenetic vengeance.

    Hard Cash

    Charles Reade

  • He is a foolish physician that cannot bear the words of a phrenetic or delirant patient.

  • This was very new; it was also very strange what a fascination he found in his phrenetic exercises.

    Little Novels of Italy

    Maurice Henry Hewlett

British Dictionary definitions for phrenetic


  1. an obsolete spelling of frenetic
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Derived Formsphrenetically, adverbphreneticness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for phrenetic


late 14c., from Old French frenetike "mad, crazy" (13c.), from Latin phreneticus, from Greek phren "diaphragm, heart, mind" (see phreno-). A doublet of frantic.

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Online Etymology Dictionary, © 2010 Douglas Harper