'Southeastern' definitions:

Definition of 'southeastern'

From: WordNet
adjective
Situated in or oriented toward the southeast [syn: southeast, southeastern, southeasterly]
adjective
Of a region of the United States generally including Alabama; Georgia; Florida; Tennessee; South Carolina; North Carolina

Definition of 'Southeastern'

From: GCIDE
  • Southeastern \South`east"ern\, a. Of or pertaining to the southeast; southeasterly. [1913 Webster] Southeastward