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

With the exception of Club name Nvidia and perhaps Advanced Micro Devices (AMD), these companies — Seagate, Western Digital, Micron, and SanDisk — are perhaps the most indispensable of the entire buildout. — Jim Cramer, CNBC, 16 Aug. 2026

China is also positioning itself as an indispensable player in setting global standards for open-source hardware. — Christopher K. Tong, The Conversation, 12 Aug. 2026

Humans will continue to be indispensable for interpretation, context and evaluation—to decide what is interesting and why. — Manon Bischoff, Scientific American, 11 Aug. 2026

That creates an opportunity for companies offering open models to potentially become indispensable to businesses by offering technological blueprints for their products. — Lisa Eadicicco, CNN Money, 10 Aug. 2026