01 a. Like a ghost in appearance; deathlike; pale; pallid; dismal.
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1.
Like a ghost in appearance; deathlike; pale; pallid; dismal.“Each turned his face with a ghastly pang.” — Coleridge.“His face was so ghastly that it could scarcely be recognized.” — Macaulay.
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2.
Horrible; shocking; dreadful; hideous.“Mangled with ghastly wounds through plate and mail.” — Milton.