southwestern
n. B1 Intermediate US //ˌsaʊθˈwɛstɝn// UK //saʊθwˈɛstən// south·west·ern
n. located in or coming from the direction between south and west. You use this to describe a specific part of a country or region.
n. situated in, directed toward, or originating from the southwest. Often used to describe regional geography, climate, or cultural styles.
We are traveling to the southwestern part of the state.
The southwestern desert regions experience very little rainfall during the summer months.
Architects in the region often incorporate southwestern design elements, such as adobe walls and flat roofs, to help buildings stay cool in the intense heat.
Usage
Typically placed before the noun it modifies; often capitalized when referring to a specific, recognized cultural or political region.