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Synonyms

calamitous

American  
[kuh-lam-i-tuhs] / kəˈlæm ɪ təs /

adjective

  1. causing or involving calamity; disastrous.

    a calamitous defeat.

    Synonyms:
    devastating, ruinous, catastrophic
    Antonyms:
    advantageous, beneficial

calamitous British  
/ kəˈlæmɪtəs /

adjective

  1. causing, involving, or resulting in a calamity; disastrous

"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

Other Word Forms

Derived Forms

Etymology

Origin of calamitous

First recorded in 1535–45; calamit(y) + -ous

Explanation

A calamitous event is one that leads to a catastrophe — like the calamitous crashing of your parents' car into the garage door. Calamitous is an adjective that is generally used to describe events, and these events are disastrous or destructive. A failed election can be a calamitous event for a politician, especially if he loses by a landslide. Ever heard of Calamity Jane? She was known for her wild, calamitous behavior in the Wild West during the 19th century. Steer clear of anyone with a name like Calamity.

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Vocabulary lists containing calamitous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Zubrin linked Musk's potential for failure to French emperor Napoleon Bonaparte's calamitous campaign in Russia.

From Barron's • Jun. 12, 2026

Barring injury or a calamitous upset, Sinner and his suspense-draining form now have a wide-open runway to his fifth major title, which would put him ahead of Djokovic or Roger Federer at the same age.

From The Wall Street Journal • May 13, 2026

“Malcolm in the Middle,” a popular series about a tightly knit calamitous family of weirdos and the relatively less weird child at its center, is back after 20 years.

From Los Angeles Times • Apr. 9, 2026

The opening defeat by north London rivals Arsenal was followed by losses against Fulham and Crystal Palace in the league before a calamitous 5-2 Champions League last 16 first-leg defeat away to Atletico Madrid.

From BBC • Mar. 29, 2026

Even before the calamitous outcome of the 1996 premonsoon climbing season, the proliferation of commercial expeditions over the past decade was a touchy issue.

From "Into Thin Air" by Jon Krakauer

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