Waldensian adjective 1noun 1forms 3 adjective1 •Of or pertaining to the Waldenses.A spin-off of the Waldensian sect began in 1207 when Durand of Huesca, an early follow of Waldo, converted to Catholicism. — 2010 noun1 •One who holds the doctrines of the Waldenses (a pre-Protestant church founded by Peter Waldo). formsWaldensians · more Waldensian · most Waldensian