easternEnglishOxford New American Dictionaryeastern /ˈēstərn, ˈistərn / ▸ adjective 1 [attributive] situated in, directed towards, or facing the east: the eastern slopes of the mountain eastern Long Island. ▪ (of a wind) blowing from the east. 2 (usually Eastern) living in or originating from the east, in particular the regions or countries lying to the east of Europe: an Eastern monk. ▪ relating to or characteristic of the East or its inhabitants: an eastern religion. – ORIGIN Old English ēasterne (as east, -ern).