Nightmarish

Origin

nightmare + -ish

Full definition of nightmarish

Adjective

1. Resembling a nightmare.
• 1994, James Howard Kunstler, The geography of nowhere: the rise and decline of America's man-made landscape, Meanwhile, the everyday landscape becomes more nightmarish and unmanageable each year.

Synonyms

• nightmarey

Derived terms

• nightmarishly
• nightmarishness