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
Walter ClemonsHe is right to imply that the political structure is a little shaky—it was a myth that it was ever rock solid.—Xan Smiley
Xan SmileyExamples of rock-solid in a Sentence
Recent Examples on the Web
But the current rush into AI infrastructure — on the promise that Microsoft, Google, or other hyperscalers are rock-solid offtakers— is too rich for CEO Sadek Wahba’s blood.
—Liz Hoffman, semafor.com, 21 Oct. 2025
He's built an amazing culture and really a rock-solid foundation.
—Alexis Kayser, MSNBC Newsweek, 17 Oct. 2025
For strong resort skiers who want to do it all from bumps to groomers to trees—the Rossignol Arcade W 94 is a rock-solid choice that inspires trust and flow on every run.
—Marina Knight, Outside, 17 Oct. 2025
The Appalachian State transfer has been rock-solid for one of the SEC's best offenses.
—Chase Goodbread, The Tuscaloosa News, 15 Oct. 2025
See All Example Sentences for rock-solid
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Liz Hoffman, semafor.com, 21 Oct. 2025
He's built an amazing culture and really a rock-solid foundation.
—Alexis Kayser, MSNBC Newsweek, 17 Oct. 2025
For strong resort skiers who want to do it all from bumps to groomers to trees—the Rossignol Arcade W 94 is a rock-solid choice that inspires trust and flow on every run.
—Marina Knight, Outside, 17 Oct. 2025
The Appalachian State transfer has been rock-solid for one of the SEC's best offenses.
—Chase Goodbread, The Tuscaloosa News, 15 Oct. 2025
See All Example Sentences for rock-solid
Cite this Entry
“Rock-solid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock-solid. Accessed 25 Oct. 2025.
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