|1.||Not dispensable; impossible to be omitted, remitted, or spared; absolutely necessary or requisite.|
|2.||(Eccl.) Not admitting dispensation; not subject to release or exemption.|
|Adj.||1.||indispensable - not to be dispensed with; essential; "foods indispensable to good nutrition"|
dispensable - capable of being dispensed with or done without; "dispensable items of personal property"
|2.||indispensable - absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker"|
|3.||indispensable - unavoidable; "the routine but indispensable ceremonies of state"|