insomnia

1. 1.

   an inability to sleep; chronic sleeplessness

   Antonymshypersomnia

   Broadersleep disorder

Other forms of insomnia

plural

insomnias·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about insomnia

What does insomnia mean?

insomnia means "an inability to sleep; chronic sleeplessness".

How many syllables are in insomnia?

insomnia has 4 syllables: in-som-ni-a. The stress falls on "som". In IPA it is /ˌɪnˈsɑmniə/.

What is the opposite of insomnia?

The recorded antonyms are hypersomnia.

Is insomnia a common word?

insomnia is banded "Familiar" — widely understood, used when the subject calls for it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.