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View synonyms for insomniac
insomniac
[ in-som-nee-ak ]
noun
- a person who has or experiences insomnia, the inability, especially when chronic, to obtain sufficient sleep, through difficulty in falling or staying asleep:
Her husband, an insomniac, had at last fallen asleep at the computer, head resting on the keyboard.
adjective
- having insomnia:
a nervous, insomniac person.
Synonyms: insomnolent, wide-awake, wakeful, awake, sleepless
- of, relating to, or causing insomnia:
long, torturous, insomniac nights.
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Other Words From
- an·ti-in·som·ni·ac adjective noun
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Word History and Origins
Origin of insomniac1
First recorded in 1905–10; insomni(a) + -ac
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