insomniac

/ɪnˈsɒm.ni.æk/

UK: /ɪnˈsɒm.ni.æk/

ꞮNSⱰM · ni · æk (3 syllables)

English Noun Top 44,739

Definition

One who suffers an inability or difficulty sleeping; a sufferer from insomnia.

Etymology

From insomnia + -ac.