Overhead and Uppermost

Overhead adjective - Located or originating from above.

Uppermost and overhead are semantically related. In some cases you can use "Uppermost" instead an adjective "Overhead".

Uppermost adjective - Being at a point or level higher than all others.

Overhead and uppermost are semantically related. Sometimes you can use "Overhead" instead the word "Uppermost" as an adjective or an adverb.