Definition of misfired:
(v) :
(firearms) To fail to discharge properly.
(v) :
(of an engine) To fail to ignite in the proper sequence.
(v) :
(of a nerve or neuron) To initiate an action potential without the proper stimulus.
(n) :
An act of misfiring.
(n) :
(figurative) A failure.
(v) :
(by extension) To fail to achieve the anticipated result.