Synonyms of indispensable

indispensable

adjective

ˌin-di-ˈspen(t)-sə-bəl 

as in essential

impossible to do without

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

Synonyms & Similar Words

• essential
• necessary
• integral
• required
• needed
• needful
• vital
• must-have
• critical
• imperative
• crucial
• important
• requisite
• all-important
• of the essence
• mandatory
• compulsory
• prerequisite
• necessitous
• basic
• key
• fundamental
• major
• obligatory
• meaningful
• momentous
• urgent
• organic
• central
• substantial
• significant
• persistent
• consequential
• insistent
• pressing
• nonelective
• material
• weighty

Antonyms & Near Antonyms

• unnecessary
• needless
• nonessential
• dispensable
• unwanted
• unimportant
• insignificant
• unessential
• undesired
• inessential
• unneeded
• extra
• external
• superfluous
• excess
• inconsequential
• extraneous
• surplus

Example Sentences

Recent Examples of indispensable

His elite speed and puck-carrying ability are indispensable to the team — the Stars looked lost at five-on-five in the playoffs without him — and his defensive game is high-end and underrated. — Harman Dayal, New York Times, 28 July 2026

That strategy has been enormously successful and remains indispensable. — Nathan W. Cooper, The Conversation, 23 July 2026

The result is a death knell for the only indispensable element in self-help, which is the author’s authority. — Literary Hub, 23 July 2026

Scientists like Munster are indispensable for figuring out the source of pandemic viruses, whether bats, pigs, rats, or some other animal, Andersen said. — CNN Money, 22 July 2026