a calamitous event, especially one occurring suddenly and causing great loss of life, damage, or hardship, as a flood, airplane crash, or business failure.
2.
Obsolete. an unfavorable aspect of a star or planet.
Origin: 1585–95; < Middle French desastre < Italian disastro, equivalent to dis-dis-1 + astro star < Latin astrum < Greek ástron
Related forms
pre·dis·as·ter, noun
Synonyms 1. mischance, misfortune, misadventure, mishap, accident, blow, reverse, adversity, affliction. Disaster,calamity,catastrophe,cataclysm refer to adverse happenings often occurring suddenly and unexpectedly. A disaster may be caused by carelessness, negligence, bad judgment, or the like, or by natural forces, as a hurricane or flood: a railroad disaster. Calamity suggests great affliction, either personal or general; the emphasis is on the grief or sorrow caused: the calamity of losing a child. Catastrophe refers especially to the tragic outcome of a personal or public situation; the emphasis is on the destruction or irreplaceable loss: the catastrophe of a defeat in battle. Cataclysm, physically an earth-shaking change, refers to a personal or public upheaval of unparalleled violence: a cataclysm that turned his life in a new direction.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a fool or simpleton; ninny.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an occurrence that causes great distress or destruction
2.
a thing, project, etc, that fails or has been ruined
[C16 (originally in the sense: malevolent astral influence): from Italian disastro, from dis- (pejorative) + astro star, from Latin astrum, from Greek astron]
1580, from M.Fr. desastre (1564), from It. disastro "ill-starred," from dis- "away, without" + astro "star, planet," from L. astrum, from Gk. astron (see star). The sense is astrological, of a calamity blamed on an unfavorable position of a planet.