occidentally

/ˌɑksəˈdɛntəli/
adverb
  1. In a way that relates to the western part of the world, especially Europe and the Americas.
    • The festival celebrated music that originated occidentally, including classical and jazz.
    • The museum's collection focuses on art created occidentally, from European Renaissance to modern American works.
    • She studied how cooking techniques developed occidentally differ from those in Eastern traditions.
Antonyms