See more synonyms for hysterical on Thesaurus.com
  1. of, relating to, or characterized by hysteria.
  2. uncontrollably emotional.
  3. irrational from fear, emotion, or an emotional shock.
  4. causing hysteria.
  5. suffering from or subject to hysteria.
  6. causing unrestrained laughter; very funny: Oh, that joke is hysterical!

Origin of hysterical

1605–15; < Latin hysteric(us) hysteric + -al1
Related formshys·ter·i·cal·ly, adverbo·ver·hys·ter·i·cal, adjectivepost·hys·ter·i·cal, adjectivesem·i·hys·ter·i·cal, adjectivesem·i·hys·ter·i·cal·ly, adverbun·hys·ter·i·cal, adjectiveun·hys·ter·i·cal·ly, adverb
Can be confusedhistoric historical hysterical

Synonyms for hysterical

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for hysterical



  1. of or suggesting hysteriahysterical cries
  2. suffering from hysteria
  3. informal wildly funny
Derived Formshysterically, adverb
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 hysterical

1610s, from Latin hystericus "of the womb," from Greek hysterikos "of the womb, suffering in the womb," from hystera "womb" (see uterus). Originally defined as a neurotic condition peculiar to women and thought to be caused by a dysfunction of the uterus. Meaning "very funny" (by 1939) is from the notion of uncontrollable fits of laughter. Related: Hysterically.

Online Etymology Dictionary, © 2010 Douglas Harper