Indispensable definition

ĭndĭ-spĕnsə-bəl

Absolutely necessary; essential.

adjective

One that is indispensable.

noun

That cannot be omitted; absolutely necessary or required.

adjective

Obligatory; unavoidable.

The routine but indispensable ceremonies of state.

adjective

That cannot be dispensed with or neglected.

adjective

An indispensable person or thing.

noun

(of duties, rules etc.) Unbendable, that cannot be set aside or ignored. [from 17th c.]

The law was moral and indispensable. -Bp. Burnet.

adjective

Absolutely necessary or requisite; that one cannot do without. [from 17th c.]

An indispensable component of a heart-healthy diet.

adjective

A thing that is not dispensable; a necessity. [from 17th c.]

noun

(in the plural, colloquial, dated) Trousers. [from 19th c.]

noun

The definition of indispensable is essential or absolutely necessary.

When a part is needed to make a machine work, this is an example of when the part is indispensable.

adjective

Other Word Forms

Singular:

indispensable

Plural:

indispensables

From Middle French indispensable, from Medieval Latin indispensabilis, corresponding to in- +‎ dispensable.

From Wiktionary