Obligatory; unavoidable: the routine but indispensable ceremonies of state.
n. One that is indispensable. in'dis·pens'a·bil'i·ty, in'dis·pens'a·ble·ness n., in'dis·pens'a·bly adv.
Synonyms: These adjectives indicate a pressing need: foods indispensable to good nutrition; funds essential to completing the project; necessary tools and materials; provided them with all things needful; lacking the requisite qualifications.
Main Entry: in·dis·pen·sa·ble Pronunciation: "in-di-'spen-s&-b&l Function: adjective : having rights so connected to the claims of the parties to an action that the action cannot be adjudicated without affecting those rights —see also indispensable party at PARTY