Word of the Day: Dégringolade

Merriam-Webster:  

a rapid decline or deterioration (as in strength, position, or condition) : DOWNFALL

Example from Why I Left by Jim Holt:

I will now confess to the obvious: the foregoing account of my spiritual dégringolade, while true in every detail, is a caricature. My alienation from the Catholic Church was not mainly intellectual. It was moral, even emotional.