Solid
Solid adjective - Having a consistency that does not easily yield to pressure.
Usage example: the ice cream is too solid to scoop right now
Thick is a synonym for solid in size topic. In some cases you can use "Thick" instead the word "Solid" as an adjective or a noun, when it comes to topics like hard.
Mutual synonyms
Both words in one sentence
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Game & Wario brought a more definite style change, as every characters except Wario himself are now drawn with thick outlines and solid black eyes, similar to Rhythm Heaven.
Source: Video Game / WarioWare -
Any metallurgist will tell you that extremely cold steel is as brittle as sugar glass, and solid ice as thick as the frozen Anna is as hard as properly forged steel.
Source: Disney / Frozen -
It's a solid cell, the bars are thick... and you can lift the door right off its hinges.
Cite this Source
Thick and Solid. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/solid/thick
Solid & Thick. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/solid/thick>.
Thick or Solid. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/solid/thick.
Google Ngram Viewer shows how "solid" and "thick" have occurred on timeline