Critical
Critical adjective - Impossible to do without.
Usage example: critical information for an informed medical diagnosis
Important is a synonym for critical in necessity topic. In some cases you can use "Important" instead an adjective "Critical", when it comes to topics like grave, essential, vital, crucial. popular alternative
Important
Important adjective - Having great meaning or lasting effect.
Usage example: the discovery of penicillin was a very important event in the history of medicine
Critical is a synonym for important in main topic. You can use "Critical" instead an adjective "Important", if it concerns topics such as valuable, necessity, grave, essential. popular alternative
Mutual synonyms
Related pairs
- grave and critical
- grave and important
- great and critical
- great and important
- serious and critical
- serious and important
- momentous and critical
- momentous and important
- necessary and critical
- necessary and important
- essential and critical
- essential and important
- imperative and critical
- imperative and important
Both words in one sentence
- Episode 14 deals with an alien invasion from the Stardroids, and has been described as so big and so important that a subplot was nearly cut out because the main plotline was so critical.
- In Flying Warriors, when the player acquires a critical quest-important item, an upbeat remix of the series' main theme plays until the end of the stage.
Source: Background Music Override - The Beatles in Yellow Submarine, because "it's all in the mind." Some of John Lennon's are blatantly plot-critical, but everyone has something important — even if it's just Magic Music.
Source: Celebrity Power
Cite this Source
Important and Critical. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/critical/important
Critical & Important. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/critical/important>.
Important or Critical. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/critical/important.
Google Ngram Viewer shows how "critical" and "important" have occurred on timeline