verb (used with object), de·mor·al·ized, de·mor·al·iz·ing.
- to deprive (a person or persons) of spirit, courage, discipline, etc.; destroy the morale of: The continuous barrage demoralized the infantry.
- to throw (a person) into disorder or confusion; bewilder: We were so demoralized by that one wrong turn that we were lost for hours.
- to corrupt or undermine the morals of.
- to undermine the morale of; disheartenhe was demoralized by his defeat
- to debase morally; corrupt
- to throw into confusion
c.1793, “to corrupt the morals of,” from French démoraliser, from de- “remove” (see de-) + moral (adj.) (see moral). Said to be a coinage of the French Revolution. Sense of “lower the morale of” (especially of armies) is first recorded 1848. Related: Demoralized; demoralizing.