from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Accompanied by or causing distress or disaster; calamitous.
- adj. Extremely bad; terrible: a disastrous report card.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. of the nature of a disaster; calamitous.
- adj. foreboding disaster; ill-omened.
from the GNU version of the Collaborative International Dictionary of English
- adj. Full of unpropitious stellar influences; unpropitious; ill-boding.
- adj. Attended with suffering or disaster; very unfortunate; calamitous; ill-fated; ending in utter failure or ruin
from The Century Dictionary and Cyclopedia
- Gloomy; dismal; threatening disaster.
- Ruinous; unfortunate; calamitous; occasioning great distress or injury: as, the day was disastrous; the battle proved disastrous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. (of events) having extremely unfortunate or dire consequences; bringing ruin
From French désastreux, from Middle French desastre (modern désastre) 'disaster', from Italian disastro, itself from dis- "away, without" (from Latin) + astro "star, planet" (from Latin astrum 'star, celestial body', from Ancient Greek (astron)). (Wiktionary)