causing or involving calamity; disastrous: a calamitous defeat.

Origin of calamitous

First recorded in 1535–45; calamit(y) + -ous
Related formsca·lam·i·tous·ly, adverbca·lam·i·tous·ness, nounun·ca·lam·i·tous, adjectiveun·ca·lam·i·tous·ly, adverb

Synonyms for calamitous

Antonyms for calamitous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for calamitous

Contemporary Examples of calamitous

Historical Examples of calamitous

British Dictionary definitions for calamitous



causing, involving, or resulting in a calamity; disastrous
Derived Formscalamitously, adverbcalamitousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for calamitous

1540s, from French calamiteux (16c.), from Latin calamitosus "causing loss, destructive," from calamitas (see calamity). Related: Calamitously; calamitousness.

Online Etymology Dictionary, © 2010 Douglas Harper