(a.) Capable of being employed; capable of being used; fit or proper for use.

accessible advantageous agential agentival agentive appropriate assisting banausic beneficial commodious conducive expedient facilitating favoring fitting forwarding functional good for handy helpful instrumental intermediary mediating mediatorial ministerial ministering of general utility of help of service of use open operative practicable practical pragmatical promoting proper serviceable subservient usable useful utilitarian