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
And yes, to borrow a line from Starship: the U.S. economy is still built on rock-solid data… not on rock and roll.
—Lim Hui Jie, CNBC, 18 July 2025
Slicing 29% off the sticker price of the very competent MSI Aegis RS2 is a sweet deal, and while this machine doesn't push to 4K, the RTX 5070 is an absolute 1080p and 1440p beast, with rock-solid framerates (and high power consumption, according to our review).
—PC Magazine, 18 July 2025
What looked like a classic pitchers’ duel before the game took some twists and turns on Friday, with one ace looking rock-solid, but losing, and another ace struggling early, but winning.
—Jess Myers, Twin Cities, 12 July 2025
Its balance sheet remains rock-solid with $111 billion in total assets compared to $32 billion in total liabilities in its 2025 fiscal year.
—Preston Fore, Fortune, 10 July 2025
See All Example Sentences for rock-solid
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Lim Hui Jie, CNBC, 18 July 2025
Slicing 29% off the sticker price of the very competent MSI Aegis RS2 is a sweet deal, and while this machine doesn't push to 4K, the RTX 5070 is an absolute 1080p and 1440p beast, with rock-solid framerates (and high power consumption, according to our review).
—PC Magazine, 18 July 2025
What looked like a classic pitchers’ duel before the game took some twists and turns on Friday, with one ace looking rock-solid, but losing, and another ace struggling early, but winning.
—Jess Myers, Twin Cities, 12 July 2025
Its balance sheet remains rock-solid with $111 billion in total assets compared to $32 billion in total liabilities in its 2025 fiscal year.
—Preston Fore, Fortune, 10 July 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 30 Jul. 2025.
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