the worst.
Simple elementary school English.
In fact, here is an elementary level lesson for you. Maybe, just maybe you'll get it.
https://study.com/academy/lesson/using-worse-vs-worst.html
"But when should you use 'worse' and when should you use 'worst?' Well, 'worse' is a comparative adjective or adverb, describing something that is more disagreeable than something else. By comparison, 'worst' is a superlative adjective or an adverb that means something is as bad as it can get: there is nothing that can get worse."