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Adjective: nightmarish  'nIt`mehrish
  1. Extremely alarming
    - bloodcurdling, hair-raising

See also: alarming

Encyclopedia: Nightmarish

Nearest

nightie
nightingale
Nightingale
nightjar
nightlife
night-light
night-line
nightlong
nightly
nightmare
nightmarish
nightrider
night-robe
nightshade
nightshirt
night-sight
nightspot
nightstand
nightstick
night-stop
nighttime