Substantial
Substantial adjective - Of a size greater than average of its kind.
Usage example: the amount he inherited was quite substantial, so he quit his job and set out to see the world
Thick is a synonym for substantial in characteristic topic. In some cases you can use "Thick" instead an adjective "Substantial".
Thick
Thick adjective - Having a greater than usual measure across.
Usage example: cross your name off the list with a really thick line so I can see it
Substantial is a synonym for thick in deep topic. Sometimes you can use "Substantial" instead an adjective "Thick", if it concerns topics such as stocky.
Both words in one sentence
-
Clark mentioned a story about a substantial spill of the stuff that ate through a three-foot-thick concrete floor and created a cloud of nasty reaction products in the process.
Source: Deadly Gas
Cite this Source
Thick and Substantial. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/substantial/thick
Substantial & Thick. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/substantial/thick>.
Thick or Substantial. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/substantial/thick.
Google Ngram Viewer shows how "substantial" and "thick" have occurred on timeline