northwestern

Pertaining to or situated in the northwest; lying in or toward the northwest: as, the Northwestern Provinces of British India.

Of, pertaining to, or being in, the northwest; in a direction toward the northwest; coming from the northwest; northwesterly.

Of or pertaining to the northwest; from or to in such a direction.

situated in or oriented toward the northwest

of a region of the United States generally including Washington; Oregon; Idaho; and sometimes Montana; Wyoming