Sound
Sound adjective - In good condition; free from defect or damage or decay.
Usage example: a sound foundation
Substantial is a synonym for sound in characteristic topic. In some cases you can use "Substantial" instead an adjective "Sound", when it comes to topics like sturdy, complete, continue, strong.
Substantial
Substantial adjective - Of good quality and condition; solidly built.
Usage example: several substantial timber buildings
Sound is a synonym for substantial in characteristic topic. You can use "Sound" instead an adjective "Substantial", if it concerns topics such as continue, strong, important.
Mutual synonyms
Cite this Source
Substantial and Sound. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/sound/substantial
Sound & Substantial. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/sound/substantial>.
Substantial or Sound. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/sound/substantial.
Google Ngram Viewer shows how "sound" and "substantial" have occurred on timeline