an event resulting in great loss and misfortune; the whole city was affected by the irremediable calamity; the earthquake was a disaster

[ Syn: calamity , disaster , tragedy , cataclysm ]

a state of extreme (usually irremediable) ruin and misfortune; lack of funds has resulted in a catastrophe for our school system; his policies were a disaster

[ Syn: disaster ]

a sudden violent change in the earths surface

[ Syn: cataclysm ]