• WordNet 3.6
    • v demoralise lower someone's spirits; make downhearted "These news depressed her","The bad state of her child's health demoralizes her"
    • v demoralise corrupt morally or by intemperance or sensuality "debauch the young people with wine and women","Socrates was accused of corrupting young men","Do school counselors subvert young children?","corrupt the morals"
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Demoralise de-mor′al-īz to corrupt in morals: to lower the morale—that is, to deprive of spirit and confidence: to throw into confusion
    • ***


In literature:

They were defenceless, but they relied on the people of Paris and on the demoralisation of the army.
"Lectures on the French Revolution" by John Emerich Edward Dalberg-Acton
The Tory party was demoralised and split up into cliques by suspicion and indignation.
"Lord John Russell" by Stuart J. Reid
It's a very dark night, and the enemy is completely demoralised by to-day's fight.
"The Kopje Garrison" by George Manville Fenn
Shells from the 18-pounders and trench-mortars cut their wire and demoralised their sentries.
"Attack" by Edward G. D. Liveing
Daphne felt rather ashamed of these proceedings, which seemed to her not merely undignified, but likely to demoralise the public.
"In Brief Authority" by F. Anstey
That was not demoralising to the Afghans, who have not European nerves.
"Soldier Stories" by Rudyard Kipling
Tropmann who murdered a whole family of eight, confessed that his demoralisation was due to the reading of sensational novels.
"A Plea for the Criminal" by James Leslie Allan Kayll
All this was demoralising, so Gordon decided on an immediate change.
"General Gordon" by Seton Churchill
We may add, then, that a competition need not be demoralising when the competitors have lofty aims and use only honourable means.
"Social Rights and Duties, Volume I (of 2)" by Sir Leslie Stephen
I do not approve of this demoralising instrument except to a very limited extent.
"Literary Tours in The Highlands and Islands of Scotland" by Daniel Turner Holmes

In news:

I remember seeing Tim Bresnan's first ball bounce twice on the way through to the wicketkeeper and as a fast bowler that is probably one of the most demoralising things you can see.