Definition of insomniac
(Entry 1 of 2)
: of, relating to, characterized by, or affected with insomnia
insomniac nights insomniac tendencies … he lived for several months with an older brother who didn't enforce bedtime rules. Joe started exchanging text messages with an insomniac friend and played online games against opponents on the other side of the planet.— John Cline The last thing my sisters and I would do on Christmas Eve—before retiring to our separate rooms and our private paroxysms of insomniac anticipation—was make sure our parents had put out cookies for Santa Claus.— Christopher Caldwell
insomniac
noun
plural insomniacs
Definition of insomniac (Entry 2 of 2)
: a person affected with insomnia
Many insomniacs develop anxiety about going to bed and they fear sleeplessness, which can worsen insomnia.— Andrew Weil
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Time Traveler for insomniac
The first known use of insomniac was in 1877
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