Synonyms: tragedy, calamity, cataclysm, catastrophe, disaster
Definition: an event resulting in great loss and misfortune
Usage: the whole city was affected by the irremediable calamity; the earthquake was a disaster
Similar words: misfortune, bad luck
Definition: unnecessary and unforeseen trouble resulting from an unfortunate event
Synonyms: cataclysm, catastrophe
Definition: a sudden violent change in the earth's surface
Similar words: geological phenomenon
Definition: a natural phenomenon involving the structure or composition of the earth