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insomniac

C2
nounadjective

Pronunciation

UK

  • /ɪnsˈɒmnɪˌæk/

US

  • /ˌɪnˈsɑmniˌæk/

Description

Imagine lying in bed, the world quiet around you, but your mind is racing. That is often the reality for an insomniac. An insomniac is not just someone who chooses to stay up late; it is a person who often has trouble falling asleep or staying asleep. It is more than just one bad night. It is a repeated problem that can leave someone feeling tired and frustrated. You might describe Sherlock Holmes as an insomniac, pacing his rooms at all hours while deep in thought, though perhaps he would not admit it.

The word comes from the Latin insomnia, meaning "sleeplessness." While everyone has trouble sleeping sometimes, an insomniac deals with it often enough that it affects daily life. They might try counting sheep, drinking warm milk, or reading a boring book, anything to quiet the mind and finally drift off.

Examples

  1. 1

    Nighttime emails

    She is an insomniac, so she often answers emails in the middle of the night.

  2. 2

    Exam stress

    My brother became an insomniac during exam week.

  3. 3

    Late-night cafe

    The late-night cafe was full of students, taxi drivers, and a few regular insomniacs.

  4. 4

    Avoiding coffee

    As an insomniac, he avoids coffee after lunch.

  5. 5

    Sleepless hours

    She does her best writing during her insomniac hours, when the house is quiet.

    • Phrase

      insomniac hours

      hours late at night when someone is awake and cannot sleep

Forms and spellings

2 forms open this card.

Main spelling

  • insomniacnounadjective

Forms

  • insomniacspluralnounadjective