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
The early internet didn’t start with clean user experiences or rock-solid standards.
—Wesley Crook, Forbes.com, 5 June 2025
Both are rock-solid performers with deep catalogs from which to draw.
—George Varga, San Diego Union-Tribune, 30 May 2025
What kind of rock-solid principles keeps them on the straight and narrow that balance that's so hard for everyone alive?
—EW.com, 26 May 2025
Tiberius’ innovation pipeline of products and services is engineered to catalyze a strategic leap in defense – empowering the UK, the US and their allies with unmatched agility, precision and rock-solid resilience.
—New Atlas, 21 May 2025
See All Example Sentences for rock-solid
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Wesley Crook, Forbes.com, 5 June 2025
Both are rock-solid performers with deep catalogs from which to draw.
—George Varga, San Diego Union-Tribune, 30 May 2025
What kind of rock-solid principles keeps them on the straight and narrow that balance that's so hard for everyone alive?
—EW.com, 26 May 2025
Tiberius’ innovation pipeline of products and services is engineered to catalyze a strategic leap in defense – empowering the UK, the US and their allies with unmatched agility, precision and rock-solid resilience.
—New Atlas, 21 May 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 8 Jun. 2025.
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