Mississippian       
 noun [ C ] uk/ˌmɪs.ɪˈsɪp.i.ən/ us/ˌmɪs.ɪˈsɪp.i.ən/
 密西西比州人
someone from the US state of Mississippi
  The boat belongs to Mississippian Charles Graham. 这艘船是密西西比人查尔斯 · 格雷厄姆的。 
 More Mississippians are seeing the value in getting a college degree. 越来越多的密西西比人看到了获得大学学位的价值。 
 - More examples
 - Thousands of Mississippians served in Lee's Army of Northern Virginia.
 - Every Mississippian remembers what they were doing on August 29, 2005.
 - All Mississippians want better jobs, better schools, better health care and more opportunities.
 
Mississippian       
adjective uk/ˌmɪs.ɪˈsɪp.i.ən/ us/ˌmɪs.ɪˈsɪp.i.ən/
 密西西比州的;密西西比州人的
from or relating to the US state of Mississippi or its people
  Robert Johnson was a Mississippian blues guitarist.  罗伯特 · 约翰逊是密西西比州的一位蓝调吉他手。 
 I went to the Grand Hotel with my Mississippian friend Julia.  我和我的密西西比朋友茱莉亚去了大饭店。 
 - More examples
 - He spoke in a lazy Mississippian drawl.
 - It is believed the Mississippian Indians settled on the site around 1200.
 - During the heyday of the Mississippian civilization, the city took in 4,000 acres.