rock-solid

adjective

rock-sol·​id ˈräk-ˈsä-ləd How to pronounce rock-solid (audio)
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
He is right to imply that the political structure is a little shaky—it was a myth that it was ever rock solid.Xan Smiley

Examples of rock-solid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But unlike higher-profile events featuring Sen. Bernie Sanders of Vermont and New York Rep. Alexandria Ocasio-Cortez, Casten’s southern Illinois appearance was in rock-solid GOP territory, where Trump won 71% of the vote in November and where 70.5% of the district’s voters backed Trump in 2020. Jeremy Gorner, Chicago Tribune, 14 Apr. 2025 After Friday's rock-solid 4-under-par 68, DeChambeau made a heartwarming gesture to one of the young patrons on the 18th green. David Faris, MSNBC Newsweek, 11 Apr. 2025 Instead, Munger had rock-solid standards for his behavior and decision-making. Kevin Kruse, Forbes.com, 10 Apr. 2025 Wall Street has mostly accepted the bargain: ironclad insulation of Zuckerberg in exchange for rock-solid Meta returns. Gregory H. Shill, The Conversation, 8 Apr. 2025 See All Example Sentences for rock-solid

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of rock-solid was in 1871

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Cite this Entry

“Rock-solid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock-solid. Accessed 21 Apr. 2025.

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