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
Alexander Romanov has become a rock-solid top-four presence for the Islanders.
—Harman Dayal, New York Times, 15 June 2025
The ultra-strong vacuum suction keeps the mount rock-solid on any smooth surface—no adhesives required.
—Stackcommerce Team, PC Magazine, 12 June 2025
The Legend of Zelda: Breath of the Wild and Tears of the Kingdom both run at significantly higher resolutions, with improved lighting and textures, all at a rock-solid 60fps.
—Oliver Brandt, MSNBC Newsweek, 10 June 2025
The early internet didn’t start with clean user experiences or rock-solid standards.
—Wesley Crook, Forbes.com, 5 June 2025
See All Example Sentences for rock-solid
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Harman Dayal, New York Times, 15 June 2025
The ultra-strong vacuum suction keeps the mount rock-solid on any smooth surface—no adhesives required.
—Stackcommerce Team, PC Magazine, 12 June 2025
The Legend of Zelda: Breath of the Wild and Tears of the Kingdom both run at significantly higher resolutions, with improved lighting and textures, all at a rock-solid 60fps.
—Oliver Brandt, MSNBC Newsweek, 10 June 2025
The early internet didn’t start with clean user experiences or rock-solid standards.
—Wesley Crook, Forbes.com, 5 June 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 Jun. 2025.
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