Hard
Hard adjective - Having or showing a lack of sympathy or tender feelings.
Rock-solid and hard are semantically related. In some cases you can use "Rock-solid" instead an adjective "Hard".
Rock-solid
Hard and rock-solid are semantically related. You can use "Hard" instead an adjective phrase "Rock-solid".
Mutual synonyms
Cite this Source
Rock-solid and Hard. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/hard/rock-solid
Hard & Rock-solid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/hard/rock-solid>.
Rock-solid or Hard. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/hard/rock-solid.