EN

Synonyms for indispensable

Most common

essential necessary vital requisite

Definitions

  1. adj. 1

    Absolutely necessary or requisite; that one cannot do without.

    An indispensable component of a heart-healthy diet.

Related words

Word family
indispensability indispensableness

Choose the right word

Indispensable, Requisite or Required?

That which is requisite (or required) is so in the judgment of the person requiring it, but may not be so absolutely; thus, the requisite is more a matter of personal feeling than the indispensable.

J. C. Fernald, English Synonyms and Antonyms (1914)

Example sentences

  • necessary Close observation is necessary for the experiment.
  • essential Selfishness is an essential part of his character.
  • vital International trade is vital for healthy economies.
  • requisite I won't be able to go travelling until the requisite visa fees are paid.

Popularity over time

Word1850 → 2019Trend
indispensablefalling
necessaryfalling
essentialsteady
vitalfalling
requisitefalling

Use in printed books, per decade from 1850 to 2019.

By length

5 letters
basic2, vital2
6 letters
needed2
7 letters
needful2
8 letters
critical3
9 letters
necessary4, essential3, requisite3
10 letters
obligatory5
11 letters
fundamental4, unforgoable

The small number after each word is its number of syllables (basic2 = 2 syllables).

In other languages

Français
indispensable
Italiano
indispensabile
Español
imprescindible
Deutsch
unerlässlich