Entry 2 senses · 2 variants Webster, 1913 outback · IPA /ˈaʊtbæk/ n. adj. 01 n. The remote bush country of Australia; as, they hunted kangaroo in the outback. 1. The remote bush country of Australia; as, they hunted kangaroo in the outback.[Australian] 02 adj. same as out-of-the-way. 1. same as out-of-the-way.[prenominal] See: out-of-the-way Syn. backwoods(prenominal), out-of-the-way, remote.