From the sublime to the ridiculous
Definition 1 of 1
Pro Tip 1/3Dramatic Shift
Describes a big change in tone or quality, often surprisingly. 
The film went from the sublime to the ridiculous, starting off strong but ending with a nonsensical twist.
Pro Tip 2/3Humor Usage
Often used humorously to emphasize how something changed for the worse. 
Her fashion sense went from the sublime to the ridiculous with those clown shoes.
Pro Tip 3/3Conversational
Common in informal conversation, not typically used in formal writing. 
Our meeting went from the sublime to the ridiculous once the pie charts turned into actual pies.