calamitous

/kəˈlæmɪtəs/
adjective
  1. Causing or involving great damage, suffering, or disaster.
    • The earthquake had a calamitous effect on the small town, destroying hundreds of homes.
    • A calamitous mistake in the company's accounting led to its bankruptcy.
    • The drought was calamitous for farmers, who lost their entire harvest.
What does "calamitous" mean? | whatsthatwordmean | whatsthatwordmean