How do you spell slim with -est?

The word "slim" doesn't have a superlative form using "-est".

Here's why:

* Superlative: The superlative form of an adjective indicates the highest degree of a quality (e.g., "tallest," "smallest").

* "Slim" is already a superlative: The word "slim" itself implies a high degree of thinness or slenderness.

Instead of using "slimest," you can use phrases like:

* Most slender

* Thinnest

* Most petite

These phrases convey a similar meaning while still being grammatically correct.