Synonyms:
southernmost, southmost
Meaning: situated farthest south; "Key West is the southernmost city in the continental United States"
Usage examples
I stood on the very summit of the southernmost of Snaefell's peaks. The range of the eye extended over the whole island.
The Gens of Dalis had occupied all the territory northward to the Pole, from a line drawn east and west through the southernmost of what had once been the Hawaiian Islands.