demoralizingly,adv.|diːˈmɒrəlaɪzɪŋlɪ| [f. demoralizing ppl. a. + -ly2.] In a demoralizing manner; to a demoralizing degree. 1926W. J. Locke Old Bridge iv. xii, It seemed..so demoralizingly vicious to drink a friend's cocktails or whisky behind closed doors.