Definition of insomnia
: prolonged and usually abnormal inability to get enough sleep
insomniacplay \in-ˈsäm-nē-ˌak\ adjective or noun
Examples of insomnia in a Sentence
has suffered from insomnia virtually his entire life
Recent Examples of insomnia from the Web
Among the others, one suffered increasing insomnia, and one became more lethargic and slept more than the others.
At first the victim may begin to feel symptoms of anxiety, nervousness, and insomnia.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'insomnia'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of insomnia
Latin, from insomnis sleepless, from in- + somnus sleep — more at somnolent
First Known Use: circa 1623
INSOMNIA Defined for English Language Learners
Definition of insomnia for English Language Learners
: the condition of not being able to sleep
INSOMNIA Defined for Kids
Definition of insomnia for Students
: difficulty in sleeping
Medical Definition of insomnia
: prolonged and usually abnormal inability to obtain adequate sleep—called also agrypnia
Seen and Heard
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