1. Ready for service or able to give long service
   "serviceable equipment"; "heavy serviceable fabrics"
    
2. Capable of being put to good use
   "a serviceable kitchen gadget"
    
3. Intended or able to serve a purpose without elaboration
   "serviceable low-heeled shoes"

See also: durable, functional, hard-wearing, long-wearing [N. Amer], operable, operational, practical, up and running, usable, useable, useful, utile

Antonym: unserviceable