Indispensable
Indispensable adjective - Impossible to do without.
Usage example: fully aware that he was an indispensable assistant, he decided that it was high time that he be paid what he was worth
Key is a synonym for indispensable in essential topic. In some cases you can use "Key" instead an adjective "Indispensable", when it comes to topics like necessary.
Nearby Word: indispensably
Key
Key adjective - Of the greatest possible importance.
Usage example: first—and this is key—I wasn't even there that evening
Indispensable is a synonym for key in essential topic. You can use "Indispensable" instead an adjective "Key", if it concerns topics such as crucial.
Mutual synonyms
Related pairs
- critical and indispensable
- critical and key
- principal and indispensable
- principal and key
- main and indispensable
- main and key
- important and indispensable
- important and key
- necessary and indispensable
- necessary and key
- essential and indispensable
- essential and key
- requisite and indispensable
- requisite and key
Cite this Source
Key and Indispensable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/indispensable/key
Indispensable & Key. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/indispensable/key>.
Key or Indispensable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/indispensable/key.
Google Ngram Viewer shows how "indispensable" and "key" have occurred on timeline