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indispensable

American  
[in-di-spen-suh-buhl] / ˌɪn dɪˈspɛn sə bəl /

adjective

  1. absolutely necessary, essential, or requisite.

    an indispensable member of the staff.

    Synonyms:
    needed
  2. incapable of being disregarded or neglected.

    an indispensable obligation.


noun

  1. a person or thing that is indispensable.

indispensable British  
/ ˌɪndɪˈspɛnsəbəl /

adjective

  1. absolutely necessary; essential

  2. not to be disregarded or escaped

    an indispensable role

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an indispensable person or thing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See necessary.

Other Word Forms

Etymology

Origin of indispensable

First recorded in 1525–35; from Medieval Latin indispēnsābilis “not subject to dispensation.” See in- 3, dispensable

Explanation

Indispensable is a strong adjective for something that you couldn't do without. If you have asthma and you're packing for summer vacation, your inhaler is indispensable, unless you enjoy gasping on the beach. Something that is dispensable is something you could get rid of, like that box of yogurt-covered zucchini snacks that's been in the pantry for a year. So if something is indispensable you couldn't possibly go without it, like salt, or for some people, coffee. Chocolate is indispensable for chocolate chip cookies, as is furniture for the adult hide-and-go-seek league.

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Vocabulary lists containing indispensable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The veteran businessman had originally helmed the parks-to-movies conglomerate between 2005 and 2020, overseeing an expansion that brought mega-franchises like "Star Wars" into the Disney stable, making himself one of Hollywood's most indispensable executives.

From Barron's Aug. 12, 2026

I had long admired her, especially the rollicking and indispensable “Slow Days, Fast Company,” first published in 1977, a charming and insightful series of stories bursting with pluck and sass.

From Los Angeles Times Jul. 27, 2026

Aaron, the court described the federal judiciary’s “supreme” position “in the exposition of the law of the Constitution” as a “permanent and indispensable feature” of American governance.

From Slate Jul. 20, 2026

Despite the growing value of citizen science, the researchers emphasize that expert taxonomists remain indispensable.

From Science Daily Jul. 12, 2026

It would mean making some quite fundamental changes in our attitudes toward each other, if we were really to think of ourselves as indispensable elements of nature.

From "The Lives of a Cell" by Lewis Thomas

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