insomnia

[ in-som-nee-uh ]

/ ɪnˈsɒm ni ə /

SEE SYNONYMS FOR insomnia ON THESAURUS.COM

noun

inability to obtain sufficient sleep, especially when chronic; difficulty in falling or staying asleep; sleeplessness.

Words nearby insomnia

insoluble, insolvable, insolvency, insolvency provision, insolvent, insomnia, insomniac, insomnolence, insomuch, insomuch as, insorption

Origin of insomnia

1685–95; < Latin, equivalent to insomn(is) sleepless (in- in-³ + somn(us) sleep + -is adj. suffix) + -ia -ia

OTHER WORDS FROM insomnia

in·som·ni·ous, adjective

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

Examples from the Web for insomnia

Although Chloe dominates the student body by day, at night insomnia dominates her.
In a New Novel, Apathetic Teenagers Usher in the Apocalypse|Elliot Ackerman|June 9, 2014|DAILY BEAST
Note: Chronic deprivation has much more serious symptoms and you should seek a medical professional if you suffer from insomnia.
Short on Zzz’s? 15 Research-Backed Sleep Hacks|DailyBurn|May 9, 2014|DAILY BEAST
So was Insomnia, Batman Begins, The Prestige, The Dark Knight, Inception, and The Dark Knight Rises.
How ‘Transcendence’ Director Wally Pfister Became Christopher Nolan’s Secret Weapon|Andrew Romano|April 17, 2014|DAILY BEAST
Difficulty making decisions, short and long term memory loss, insomnia, lingering fatigue, or an inability to control emotions.
How a Thumb-Sized Gauge Is Revolutionizing Traumatic Brain Injuries|Brian Castner|March 23, 2014|DAILY BEAST

Sure ASMR clips can put you to sleep and help stave off insomnia, maybe even get rid of that nasty headache you've had for days.
ASMR and the Rise of the Whisper Fetish|Aurora Snow|December 7, 2013|DAILY BEAST
In his rich gush of friendship he recurred to the subject of my insomnia with a new-born enthusiasm.
The Wit and Humor of America, Volume VI. (of X.)|Various
In all such cases there is a marked tendency to insomnia present.
Sleep and Its Derangements|William A. Hammond
There are nervous persons troubled with insomnia who admit that their sleeplessness was in the beginning voluntary.
A General Introduction to Psychoanalysis|Sigmund Freud
This is especially true of certain cases of insomnia which the patient reports as follows.
Psychoanalysis|Andr Tridon
"He suffers so from insomnia, I don't blame him," answered Pen.
Still Jim|Honor Willsie Morrow

British Dictionary definitions for insomnia

insomnia

/ (ɪnˈsɒmnɪə) /

noun

chronic inability to fall asleep or to enjoy uninterrupted sleepRelated adjective: agrypnotic

Derived forms of insomnia

insomnious, adjective

Word Origin for insomnia

C18: from Latin, from insomnis sleepless, from somnus sleep

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