adjadj.allnot to be dispensed with; essentialAttributes:dispensability dispensableness
Examples:- foods indispensable to good nutrition
Antonyms:dispensable
Derivationally Related Form:indispensabilityindispensableness
Inherited Hypernyms:indispensable
Similar to:critical vital
See also:necessary
adj satadj.allabsolutely necessary; vitally necessarySynset:essential
Examples:- essential tools and materials
- funds essential to the completion of the project
- an indispensable worker
Antonyms:unnecessary
Derivationally Related Form:indispensabilityessentialindispensablenessessentialness
Inherited Hypernyms:essential
Similar to:necessary
adj satadj.allunavoidableExamples:- the routine but indispensable ceremonies of state
Antonyms:optional
Inherited Hypernyms:indispensable
Similar to:obligatory