Oregonian /ɒɹɪˈɡəʊnɪ.ən/adjective 1noun 1forms 1 adjective1 •Of or pertaining to Oregon.His insistence on wearing thick wool scarves, even in the summertime, derived from his uniquely Oregonian sense of fashion. noun1 •A native or resident of the state of Oregon in the United States of America.Born and raised in Salem, he was admittedly an Oregonian through and through, though he secretly hated it. formsOregonians