disaster
noun
1.
a state of extreme (usually irremediable) ruin and misfortune
2.
an event resulting in great loss and misfortune
arvethsithe doomfall grimming harrow-hap ill-hap onsand theedbale woehap woopleeth calamity cataclysm catastrophe tragedy
Derived from:
disastrous 3.
an act that has disastrous consequences