Critical and Indispensable

Critical

Critical adjective - Of the greatest possible importance.
Usage example: this is the critical exam that will largely determine your college career

Indispensable is a synonym for critical in necessity topic. In some cases you can use "Indispensable" instead an adjective "Critical", when it comes to topics like vital.

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

Critical is a synonym for indispensable in necessity topic. You can use "Critical" instead an adjective "Indispensable", if it concerns topics such as essential, vital.

Nearby Word: indispensably
Cite this Source
Indispensable and Critical. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/critical/indispensable
Critical & Indispensable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/critical/indispensable>.
Indispensable or Critical. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/critical/indispensable.
Google Ngram Viewer shows how "critical" and "indispensable" have occurred on timeline