Solid and Solid as a rock

Solid adjective - Based on sound reasoning or information.

Solid as a rock and solid are semantically related In some cases you can use "Solid as a rock" instead an adjective "Solid".

Nearby Words: solidify, solidly, solidity, solidified

Solid and solid as a rock are semantically related in fastened topic. You can use "Solid" instead an adjective phrase "Solid as a rock", if it concerns topics such as stable, constant.