Sound
Sound adjective - According to the rules of logic.
Usage example: sound reasoning alone should tell you that the result is invalid
Well-founded is a synonym for sound in sensible topic. In some cases you can use "Well-founded" instead an adjective "Sound", when it comes to topics like good, reason, logical.
Well-founded
Well-founded adjective - According to the rules of logic.
Usage example: even a well-founded argument can lead to an erroneous conclusion if one of the premises is incorrect
Sound is a synonym for well-founded in good topic. You can use "Sound" instead an adjective phrase "Well-founded", if it concerns topics such as reason.
Mutual synonyms
Related pairs
Both words in one sentence
- His "neither a borrower nor a lender be" speech to Laertes—usually played for laughs—is perfectly sound advice from start to finish, and his opposition to his daughter's relationship with Hamlet proves horribly well-founded.
Cite this Source
Well-founded and Sound. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/sound/well-founded
Sound & Well-founded. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/sound/well-founded>.
Well-founded or Sound. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/sound/well-founded.
