antoecian (adj.)

"pertaining to the people dwelling on the opposite side of the earth," 1860, from antoeci (plural) "people dwelling on the opposite side of the earth" (1620s), a Latinized form of Greek antoikoi, literally "dwellers opposite," from anti "opposite" (see anti-) + oikein "to dwell" (from PIE root *weik- (1) "clan").