NSW Opportunity Class
Disheartened
adjective/dis-HAR-tuhnd/
Having lost hope, confidence or enthusiasm.
In contextDon't be disheartened by one bad mark; keep practising.
Remember it
Dis- (remove) + heart: the heart goes out of you, so your spirits sink.
Use it well
Use for lost confidence after a setback; the opposite is 'heartened'.