'Southmost' definitions:
Definition of 'southmost'
(from WordNet)
adjective
Situated farthest south; "Key West is the southernmost city in the continental United States" [syn: southernmost, southmost]
Definition of 'Southmost'
From: GCIDE
- Southmost \South"most`\, a. Farthest toward the south; southernmost. [R.] --Milton. [1913 Webster]