Critical and Imperative

Critical

Critical adjective - Needing immediate attention.
Usage example: this problem isn't critical, so we can go home now and tend to it in the morning

Imperative is a synonym for critical in essential topic. In some cases you can use "Imperative" instead the word "Critical" as an adjective or a noun.

Imperative

Imperative adjective - Impossible to do without.
Usage example: proper equipment is imperative for the success of this chemical experiment

Critical is a synonym for imperative in necessary topic. You can use "Critical" instead an adjective "Imperative", if it concerns topics such as essential, vitally important.

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