† viadantObs.rare. [Irreg. ad.Sp., Pg., It.viandante, f.via way + andar(e to go.] A wayfarer, traveller. 1632Lithgow Trav. iii. 129 They are but poorely cled, yet wonderfull kinde to all Viadants.Ibid. viii. 353 The voluntary exposement of many vnnecessary Viadants.