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calamitous

[kuh-lam-i-tuh s] /kəˈlæm ɪ təs/
adjective
1.
causing or involving calamity; disastrous:
a calamitous defeat.
Origin
1535-1545
1535-45; calamit(y) + -ous
Related forms
calamitously, adverb
calamitousness, noun
uncalamitous, adjective
uncalamitously, adverb
Synonyms
catastrophic, ruinous, devastating.
Antonyms
beneficial, advantageous.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for more calamitous

calamitous

/kəˈlæmɪtəs/
adjective
1.
causing, involving, or resulting in a calamity; disastrous
Derived Forms
calamitously, adverb
calamitousness, 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
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Word Origin and History for more calamitous

calamitous

adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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