1. An event that brings terrible loss, lasting distress, or severe affliction; a disaster: A hurricane would be a calamity for this low-lying coastal region.
2. Dire distress resulting from loss or tragedy.

[Middle English calamite, from Old French, from Latin calamitās.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.