What is a synonym for calamity?

Here are some synonyms for "calamity," depending on the specific nuance you want to convey:

General synonyms:

* Disaster

* Catastrophe

* Misfortune

* Tragedy

* Hardship

* Affliction

* Adversity

More specific synonyms:

* For a sudden, destructive event: Devastation, upheaval, havoc, ruin, wreck

* For a personal misfortune: Misery, woe, grief, sorrow, heartbreak

* For a societal or widespread disaster: Plague, scourge, epidemic, famine, war

The best synonym for "calamity" will depend on the context and the specific meaning you want to convey.