Synonyms for Eastward (same or very similar meaning)
WordNet sense 1 (the cardinal compass point that is at 90 degrees):
e, due eastWordNet sense 2 (moving toward the east):
eastboundWordNet sense 3 (situated in or facing or moving toward the east):
eastWordNet sense 4 (toward the east):
eastwardsFrom the ODE community, based on WordNetadd/edit