If something "got worse," it has done what?

When something "got worse," it indicates that its condition or quality has declined or deteriorated. This phrase is commonly used to describe situations in which circumstances have become more negative or unfavorable compared to a previous state. For example, if a person’s health deteriorates, it means their health has become worse than it was before.

Improvement signifies a positive change; thus, if something "got worse," it directly opposes the notion of improving significantly. Remaining stable would mean that there is no change, which also contradicts the idea of worsening. Similarly, growing in size does not necessarily imply any improvement or deterioration in quality; it only indicates a physical change, not a negative one. Therefore, "deteriorated" is the accurate term to describe something that has become worse.