Dictionary.com
Thesaurus.com
Synonyms

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.

Keep Reading on Vocabulary.com

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.

Yet the vast central African nation is also one of the world's biggest sources of critical metals indispensable to global industry.

From Barron's • Jun. 26, 2026

If Washington remains the indispensable man of the Revolution, then Maj.

From The Wall Street Journal • Jun. 26, 2026

For the first time in his career, Stokes the cricketer is not indispensable.

From BBC • Jun. 10, 2026

But even more important, it reminded us that history is an indispensable tool for shaping the more equitable future we hope to inhabit.

From Los Angeles Times • Jun. 8, 2026

We owe to him indispensable phrases which encapsulate powerful arguments, such as ‘unintended consequence’ and ‘self-fulfilling prophecy’; one of his phrases, ‘role model’, has moved out of the university into daily speech.

From "The Invention of Science" by David Wootton

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "indispensable" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com