disserviceably

from The Collaborative International Dictionary of English v.0.48

Disserviceable \Dis*serv"ice*a*ble\, a.
   Calculated to do disservice or harm; not serviceable;
   injurious; harmful; unserviceable. --Shaftesbury. --
   {Dis*serv"ice*a*ble*ness}, n. --Norris. --
   {Dis*serv"ice*a*bly}, adv.
   [1913 Webster]