[ hi-ster-i-kuhl ]
/ hɪˈstɛr ɪ kəl /


of, relating to, or characterized by hysteria.
uncontrollably emotional.
irrational from fear, emotion, or an emotional shock.
causing hysteria.
suffering from or subject to hysteria.
causing unrestrained laughter; very funny: Oh, that joke is hysterical!

Origin of hysterical

1605–15; < Latin hysteric(us) hysteric + -al1

Related forms

Can be confused

historic historical hysterical
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hysterically

British Dictionary definitions for hysterically



/ (hɪˈstɛrɪkəl) /


of or suggesting hysteriahysterical cries
suffering from hysteria
informal wildly funny

Derived Forms

hysterically, 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