[{"Bold_text": "noun", "List Items": ["a sudden and widespread disaster:the catastrophe of war.Synonyms: calamity , misfortune Antonyms: triumph", "any misfortune, mishap, or failure; fiasco:The play was so poor our whole evening was a catastrophe.", "a final event or conclusion, usually an unfortunate one; a disastrous end:the great catastrophe of the Old South at Appomattox.Antonyms: triumph", "(in a drama) the point at which the circumstances overcome the central motive, introducing the close or conclusion; dénouement.Compare catastasis , epitasis , protasis .", "Geology.a sudden, violent disturbance, especially of a part of the surface of the earth; cataclysm.", "Also calledca·tas·tro·phe func·tion[k, uh, -, tas, -tr, uh, -fee fuhngk-sh, uh, n].Mathematics.any of the mathematical functions that describe the discontinuities that are treated in catastrophe theory catastrophe theory."]}]