rock-solid
adjective
rock-sol·id
ˈräk-ˈsä-ləd
variants
or rock solid
: completely or perfectly solid (as because of great strength or dependability)
supported by a rock-solid foundation
She has a rock-solid reputation.
Their relationship was rock solid.
… she moved in an artificial world without ever losing her rock-solid integrity.—Walter Clemons
He is right to imply that the political structure is a little shaky—it was a myth that it was ever rock solid.—Xan Smiley
Cite this Entry
“Rock-solid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock-solid. Accessed 4 Sep. 2026.
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