—n.
1 harm to reputation (brought discredit on the enterprise).
2 a person or thing causing this (he is a discredit to his family).
3 lack of credibility; doubt (throws discredit on her story).
4 the loss of commercial credit.
—v.tr. (-credited, -crediting)
1 harm the good reputation of.
2 cause to be disbelieved.
3 refuse to believe.
Useful english dictionary. 2012.