malfed

malfed

(mælft)
adj
having malfunctioned
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
In the testing at my range, the Springfield RO perked reliably with everything except the light load it wasn't "sprung for," and even then only malfed once out of five shots.