indispensable

adjective

in·​dis·​pens·​able ˌin-di-ˈspen(t)-sə-bəl 

1

: absolutely necessary : essential

an indispensable member of the staff

2

: not subject to being set aside or neglected

an indispensable obligation

indispensability

ˌin-di-ˌspen(t)-sə-ˈbi-lə-tē 

noun

indispensable noun

indispensableness

ˌin-di-ˈspen(t)-sə-bəl-nəs 

noun

indispensably

ˌin-di-ˈspen(t)-sə-blē 

adverb

Synonyms

• all-important
• critical
• essential
• imperative
• integral
• must-have
• necessary
• necessitous
• needed
• needful
• required
• requisite
• vital

Examples of indispensable in a Sentence

fully aware that he was an indispensable assistant, he decided that it was high time that he be paid what he was worth

Recent Examples on the Web

These information superhighways are a major engine for the modern economy and are indispensable for things such as almost instantaneous financial transactions and real-time diplomatic and military communications. —John Calabrese, The Conversation, 10 Apr. 2025

Cybersecurity stocks remain an indispensable part of an investment portfolio — no matter what’s happening with global trade. —Paulina Likos, CNBC, 9 Apr. 2025

Michael Nagle | Bloomberg | Getty Images Cybersecurity stocks remain an indispensable part of an investment portfolio — no matter what’s happening with global trade. —Paulina Likos, CNBC, 9 Apr. 2025

Fintech companies should ensure their solutions can be seamlessly integrated into workflows and tech stacks, with the goal of becoming an indispensable part of a business’ operations. —Ken Moss, Forbes.com, 8 Apr. 2025

Word History

First Known Use

1653, in the meaning defined at sense 2

Rhymes for indispensable

• compensable
• condensable
• defensible
• dispensable
• extensible
• insensible
• ostensible
• comprehensible
• indefensible
• reprehensible
• supersensible
• incomprehensible

Kids Definition

indispensable

adjective

in·​dis·​pens·​able ˌin-dis-ˈpen(t)-sə-bəl 

: absolutely necessary : essential

an indispensable employee

indispensability

-ˌpen(t)-sə-ˈbil-ət-ē 

noun

Legal Definition

indispensable

adjective

in·​dis·​pen·​sa·​ble ˌin-di-ˈspen-sə-bəl 

: having rights so connected to the claims of the parties to an action that the action cannot be adjudicated without affecting those rights see also indispensable party at party