Difficult to believe
Solid and difficult to believe are semantically related. In some cases you can use "Solid" instead an adjective phrase "Difficult to believe".
Solid
Solid adjective - Based on sound reasoning or information.
Difficult to believe and solid are semantically related. Sometimes you can use "Difficult to believe" instead an adjective "Solid".
Mutual synonyms
Cite this Source
Solid and Difficult to believe. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/difficult_to_believe/solid
Difficult to believe & Solid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/difficult_to_believe/solid>.
Solid or Difficult to believe. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/difficult_to_believe/solid.