Answer: misfiring

AnswerCrossword Clue
misfiring(of a nerve cell) Fail to transmit an electrical impulse at an appropriate moment
misfiring(of a gun or missile) Fail to discharge or fire properly
misfiring(esp. of a plan) Fail to produce the intended result
misfiringMISFIRE, to fail to fire
misfiring(of an internal combustion engine) Undergo failure of the fuel to ignite correctly or at all