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
Because of its reach, the company struggled to make SDS compliance rock-solid.
—Ihor Hamal, Forbes.com, 15 Aug. 2025
While not as well-known as Sandlin, Early or Tolle, Hayden Mullins and Dalton Rogers have both been rock-solid for the Sea Dogs over the past month.
—Mac Cerullo, Boston Herald, 8 Aug. 2025
The booming riffs of the trombones left space for the rhythm section — including a rock-solid Manny Oquendo on timbales — to breathe freely.
—Ernesto Lechner, Rolling Stone, 6 Aug. 2025
Known for years as a rock-solid producer of Chardonnay, Pinot Noir, and Zinfandel, Sonoma’s Hartford Family Winery just released the first of its sparkling wines—a project years in the making.
—Mike Desimone, Robb Report, 5 Aug. 2025
See All Example Sentences for rock-solid
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Ihor Hamal, Forbes.com, 15 Aug. 2025
While not as well-known as Sandlin, Early or Tolle, Hayden Mullins and Dalton Rogers have both been rock-solid for the Sea Dogs over the past month.
—Mac Cerullo, Boston Herald, 8 Aug. 2025
The booming riffs of the trombones left space for the rhythm section — including a rock-solid Manny Oquendo on timbales — to breathe freely.
—Ernesto Lechner, Rolling Stone, 6 Aug. 2025
Known for years as a rock-solid producer of Chardonnay, Pinot Noir, and Zinfandel, Sonoma’s Hartford Family Winery just released the first of its sparkling wines—a project years in the making.
—Mike Desimone, Robb Report, 5 Aug. 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 19 Aug. 2025.
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