Outermost and Outer

Outermost adjective - Situated at the farthest possible point from a center.

Outer is a synonym for outermost. In some cases you can use "Outer" instead an adjective "Outermost". popular alternative

Outer adjective - Situated on the outside or farther out.

Outermost is a synonym for outer in external topic. You can use "Outermost" instead an adjective "Outer", if it concerns topics such as outside. popular alternative