01 a. Full of unpropitious stellar influences; unpropitious; ill-boding.
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1.
Full of unpropitious stellar influences; unpropitious; ill-boding.[Obs.]“The moon In dim eclipse, disastrous twilight sheds.” — Milton.
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2.
Attended with suffering or disaster; very unfortunate; calamitous; ill-fated; ending in utter failure or ruin; as, a disastrous day; a disastrous termination of an undertaking.“Wherein I spake of most disastrous chances.” — Shak.