CALAMITOUS /kəˈlæmɪtəs/ ► audio Scrabble 14 Words With Friends 18 Definition adjective (of events) having extremely unfortunate or dire consequences. — synonyms: black, disastrous, fatal, fateful Examples “The city was struck by a calamitous cyclone.” See all 437 words you can make from CALAMITOUS → 10-letter words Words starting with C Words ending with S ← Unscramble different letters