Adjective: indispensable ,in-di'spen-su-bul
- Not to be dispensed with; essential
"foods indispensable to good nutrition"
- Absolutely necessary; vitally necessary
"an indispensable worker";
- essential
- Unavoidable
"the routine but indispensable ceremonies of state"
See also: critical, dispensability, dispensableness, irremissible, necessary, obligatory, vital
Antonym: dispensable
Encyclopedia: Indispensable