The Collaborative International Dictionary of English v.0.48:
outward-bound \outward-bound\ adj. travelling away from a port or station; as, outward-bound ships. Opposite of inward-bound or inbound. Syn: departing(prenominal), outbound, outward. [WordNet 1.5]WordNet (r) 3.0 (2006):
outward-bound adj 1: that is going out or leaving; "the departing train"; "an outward journey"; "outward-bound ships" [syn: outbound, outward, outward-bound]