Synonyms for Seafaring (same or very similar meaning)
WordNet sense 1 (used on the high seas):
oceangoing, seagoingWordNet sense 2 (relating to or characteristic of or occurring on the sea or ships):
seaWordNet sense 3 (the work of a sailor):
navigation, sailingWordNet sense 4 (travel by water):
water travelFrom the ODE community, based on WordNetadd/edit