southeastern
adjective
south·east·ern sau̇th-ˈē-stərn 
sau̇-ˈē-
1
often capitalized : of, relating to, or characteristic of a region conventionally designated southeast
2
: lying toward or coming from the southeast
southeasternmost
sau̇th-ˈē-stərn-ˌmōst
adjective sau̇-ˈē-
Example Sentences
the southeastern corner of the state
Recent Examples on the Web Taiwan's earthquake monitoring agency says the quake hit off the island's southeastern coast at a depth of roughly four miles. 
Anders Hagstrom, Fox News, 18 Sep. 2022 Taiwan's Central Weather Bureau said the quake, which struck near Taitung city on its southeastern coast, registered 6.8 magnitude and was a relatively shallow depth of 4 miles. Mithil Aggarwal, NBC News, 18 Sep. 2022 Separately, Russian forces would come from the east and drive through central Ukraine to the Dnieper River, while troops from Crimea took over the southeastern coast. Liz Sly, Washington Post, 16 Aug. 2022 The young female walrus has been spending time at the Oslo Fjord, an inlet on the country’s southeastern coast. Zoe Sottile, CNN, 14 Aug. 2022 On America’s southeastern Atlantic coast, in the modern states of South Carolina, Georgia, and Florida, Indigenous peoples whose descendants include the Muscogee built gargantuan monuments out of oyster shells. Ashley Braun, Smithsonian Magazine, 25 July 2022 The first match is expected to take place in Germany, where the US team would conduct the bulk of its time before traveling to Murcia on Spain’s southeastern coast ahead of the Sept. 27 game. BostonGlobe.com, 21 June 2022 We’re told at the outset that the film was inspired by seven historic photographs taken by a Danish priest, the first to document the country’s southeastern coast. Peter Debruge, Variety, 24 May 2022 China, however, sees Taiwan, just 125 miles off its southeastern coast, as a breakaway province. Ryan W. Miller, USA TODAY, 19 May 2022 See More
Anders Hagstrom, Fox News, 18 Sep. 2022 Taiwan's Central Weather Bureau said the quake, which struck near Taitung city on its southeastern coast, registered 6.8 magnitude and was a relatively shallow depth of 4 miles. Mithil Aggarwal, NBC News, 18 Sep. 2022 Separately, Russian forces would come from the east and drive through central Ukraine to the Dnieper River, while troops from Crimea took over the southeastern coast. Liz Sly, Washington Post, 16 Aug. 2022 The young female walrus has been spending time at the Oslo Fjord, an inlet on the country’s southeastern coast. Zoe Sottile, CNN, 14 Aug. 2022 On America’s southeastern Atlantic coast, in the modern states of South Carolina, Georgia, and Florida, Indigenous peoples whose descendants include the Muscogee built gargantuan monuments out of oyster shells. Ashley Braun, Smithsonian Magazine, 25 July 2022 The first match is expected to take place in Germany, where the US team would conduct the bulk of its time before traveling to Murcia on Spain’s southeastern coast ahead of the Sept. 27 game. BostonGlobe.com, 21 June 2022 We’re told at the outset that the film was inspired by seven historic photographs taken by a Danish priest, the first to document the country’s southeastern coast. Peter Debruge, Variety, 24 May 2022 China, however, sees Taiwan, just 125 miles off its southeastern coast, as a breakaway province. Ryan W. Miller, USA TODAY, 19 May 2022 See More Word History
Etymology
southeast entry 2 + -ern (as in eastern)
First Known Use
before the 12th century, in the meaning defined at sense 2
Kids Definition
southeastern
adjective
south·east·ern sau̇th-ˈē-stərn
1
often capitalized : of, relating to, or like that of the Southeast
a southeastern city
2
: lying toward or coming from the southeast
southeastern New York