Essential
Essential adjective - Impossible to do without.
Usage example: a well-stocked public library is essential for the well-being of a community
Important is a synonym for essential in vital topic. In some cases you can use "Important" instead an adjective "Essential", when it comes to topics like necessity, 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
Essential is a synonym for important in main topic. You can use "Essential" instead an adjective "Important", if it concerns topics such as valuable, necessity, vital, valued. popular alternative
Mutual synonyms
Related pairs
- material and essential
- material and important
- substantial and essential
- substantial and important
- critical and essential
- critical and important
- principal and essential
- principal and important
- main and essential
- main and important
- necessary and essential
- necessary and important
- imperative and essential
- imperative and important
Both words in one sentence
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Its many differences from his father's (smaller, red robes, integrated audience, crowned by the Avatar instead of a Fire Sage) are very important, but the crown and the standing up are ritually essential and stay the same.
Source: Important Hair Accessory -
Of course, important bonus scenes aren't limited to Volume enders (most notably in 15-2 which revealed some practically essential backstory).
Source: Visual Novel / Cause of Death - One of the reasons it is so important is that it is essential for FTL navigation.
Source: No Blood for Phlebotinum
Cite this Source
Important and Essential. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/essential/important
Essential & Important. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/essential/important>.
Important or Essential. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/essential/important.
Google Ngram Viewer shows how "essential" and "important" have occurred on timeline