noun

insomniac

ihn-SOM-nee-ak

Insomniac (noun) means a person who has trouble sleeping, especially on a regular basis. Example: “As an insomniac, he was used to being awake at 3am.”

noun

A person who has trouble sleeping, especially on a regular basis.

"As an insomniac, he was used to being awake at 3am."

adjective

Relating to or suffering from insomnia.

"She spent her insomniac nights reading old paperbacks."

How to use insomniac

Learner’s notes

In plain EnglishSomeone who regularly struggles to sleep, or something related to that struggle.

Word forms

insomniacs plural

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As an _____, he was used to being awake at 3am.

Etymology

From insomnia + the noun/adjective suffix -ac.

Synonyms

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sleepless person

Rhymes for insomniac

zodiac cardiac Pontiac amnesiac brainiac egomaniac pyromaniac aphrodisiac kleptomaniac megalomaniac nymphomaniac hypochondriac

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Frequently asked questions

What does “insomniac” mean?

The word “insomniac” means a person who has trouble sleeping, especially on a regular basis. In plain terms, someone who regularly struggles to sleep, or something related to that struggle.

How do you pronounce “insomniac”?

“Insomniac” is pronounced ihn-SOM-nee-ak (/ɪnˈsɒm.ni.æk/ in IPA).

How do you use “insomniac” in a sentence?

Here is “insomniac” used in a sentence: “As an insomniac, he was used to being awake at 3am.”

What part of speech is “insomniac”?

Depending on how it is used, “insomniac” can be a noun and an adjective.

How many meanings does “insomniac” have?

“Insomniac” has 2 distinct senses listed in this dictionary. The most common is: a person who has trouble sleeping, especially on a regular basis.