Definition of dishonouring:
(n) :
Shame or disgrace.
(n) :
Lack of honour or integrity.
(v) :
To bring disgrace upon someone or something; to shame.
(v) :
To refuse to accept something, such as a cheque; to not honor.
(n) :
(law) Failure or refusal of the drawee or intended acceptor of a negotiable instrument, such as a bill of exchange or note, to accept it or, if it is accepted, to pay and retire it.
(v) :
To violate or rape.