megadisaster
nounEtymology From mega- + disaster.
1
An unexpected natural or man-made catastrophe of exceptional magnitude, causing unusually severe or unprecedented damage.
- This chapter uses case studies along with a new data set focused on Kobe's nine wards after the city's 1995 megadisaster, the earthquake known in Japanese as the Hanshin Awaji Daishinsai (the Great Hanshin—Awaji Earthquake), […]2012, Daniel P. Aldrich, Building Resilience: Social Capital in Post-Disaster Recovery, University of Chicago Press, →ISBN, page 75:
2
An unforeseen event of any kind with exceptionally unpleasant, distressing, or unfortunate results.
- After the initial shock of discovering my scheduling megadisaster, I forced myself to take a deep breath.2009, Andrew Attaway, Daily Guideposts 2009: A Spirit-Lifting Devotional, Guideposts, published 2008, →ISBN, page 311: