Ausonian /ɔːˈsəʊni.ən/adjective 3noun 2forms 1 adjective3 •(historical) Of ancient Ausonia or the Ausonians. •(literary) Italian.Or hollowing one hand against his ear, / To list a foot-fall, ere he saw / The wood-nymph, stay'd the Ausonian king to hear / Of wisdom and of law. — 1832 •Of or relating to the ancient poet Ausonius. noun2 •(historical) An ancient inhabitant of middle or lower Italy.The Ausonians, the most ancient inhabitants of Italy, computed the day from midnight. — 1823 •(literary) An Italian. formsAusonians