Adj. | 1. | ![]() nonfunctional - not having or performing a function useless - having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency" serviceable - ready for service or able to give long service; "serviceable equipment"; "heavy serviceable fabrics" |
2. | unserviceable - not capable of being used useless - having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency" |