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.
Saturday will be Simpson’s first chance to make an impression on fans – some of whom were left bewildered by his selection, considering the ever-rock-solid standing of Stafford. — Benjamin Royer, Oc Register, 14 Aug. 2026 What you’re left with is a mass of sticky gunk which slowly thickens and then dries out, creating what the expert says is a rock-solid clog. — Maria Sabella, Better Homes & Gardens, 12 Aug. 2026 Lagarde inherits a company known for stable cash generation, high returns on capital and a rock-solid balance sheet. — Harvey Stober, CNBC, 5 Aug. 2026 Thanks to a world-class performance from a 40-year-old goalkeeper and a rock-solid Cape Verde defense, the African nation emerged overjoyed despite a draw. — Ainsley Flood, CNN Money, 2 Aug. 2026 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

Rhymes for rock-solid

See All Rhymes for rock-solid

Browse Nearby Words

rock soap
rock-solid
rock someone's world
See all Nearby Words

Cite this Entry

“Rock-solid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock-solid. Accessed 21 Aug. 2026.

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