The word worse is used to compare two things and highlight a negative change or lower quality, while worst is reserved for identifying the absolute lowest quality or most negative state among a group.

Worse and worst are both forms of the word bad. Worse is what’s called the comparative form, basically meaning “more bad.” Worst is the superlative form, basically meaning “most bad.” Worse is used when making a comparison to only one other thing: Your breath is bad, but mine is worse or The situation was bad and it just got worse.

The difference between worse and worst is that worse is a comparative adjective and worst is a superlative adjective. Both, however, can also function as nouns and adverbs. Worse describes something as “ low -quality, low standard” and “ more unfavorable, difficult, or unpleasant.”

"Worse" is used to compare two things, indicating that one is of lower quality or more unfavorable than the other. For example, "This movie is worse than the last one." In contrast, "worst" is the superlative form, used to describe the most unfavorable condition among three or more options, as in "This is the worst movie I have ever seen."

“Worse” is a comparative adjective that describes something as “of poorer quality or condition.” It is used to explain that something has a lower quality when compared to something else. “Worst” is a superlative adjective that describes something as “of the poorest quality or condition.”