Essential
Essential adjective - Impossible to do without.
Usage example: a well-stocked public library is essential for the well-being of a community
Substantial is a synonym for essential in important topic. In some cases you can use "Substantial" instead an adjective "Essential", when it comes to topics like practical.
Substantial
Substantial adjective - Having great meaning or lasting effect.
Usage example: substantial changes to the school dress code that made a lot of people unhappy
Essential is a synonym for substantial in important topic. Sometimes you can use "Essential" instead an adjective "Substantial", if it concerns topics such as practical, fundamental.
Mutual synonyms
Related pairs
- valuable and essential
- valuable and substantial
- material and essential
- material and substantial
- important and essential
- important and substantial
- vital and essential
- vital and substantial
- key and essential
- key and substantial
- substantive and essential
- substantive and substantial
- major and essential
- major and substantial
Both words in one sentence
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Another is that the brain damage was due to the character being deprived of something that's essential or substantial to having a relatively healthy body.
Source: Childhood Brain Damage
Cite this Source
Substantial and Essential. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/essential/substantial
Essential & Substantial. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/essential/substantial>.
Substantial or Essential. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/essential/substantial.
Google Ngram Viewer shows how "essential" and "substantial" have occurred on timeline