comedown

noun

Etymology: A deverbal from come down.

1. A sudden drop to a lower status, condition or level; a disappointment or letdown.

   “He had two subjects of conversation, the shame and come-down of being a tramp, and the best way of getting a free meal.”

   “I have to say it again, my Dearest Friend. What a wonderful Comedown for the Godhead! What a wonderful Comeuppance for Humankind! That’s because You, Lord God, Creator, Bellows Maker of All That Breathes, deigned to come to my hovel of a soul; once there, to fatten up the leanness of my soul with the plumpitude of Your Sacrament; that’s to say, with the plenitude of Your Divinity and Humanity.”

2. A calm, mellow, or depressive period experienced after the (initial) high from taking drugs.