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.
In addition to rock-solid security, this group of 56,000 people would have outsize political influence. Steve Forbes, Forbes, 11 Feb. 2025 Even with a rock-solid skincare routine, skin setbacks are bound to happen. Catherine Santino, People.com, 4 Feb. 2025 His strategies are both innovative and effective, and his determination is rock-solid. Chris Gallagher, USA TODAY, 28 Jan. 2025 Jones is primed for a monster performance on Sunday against the Bills’ rock-solid offensive line. Elizabeth Robinson, NBC News, 24 Jan. 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

Dictionary Entries Near rock-solid

Cite this Entry

“Rock-solid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock-solid. Accessed 23 Feb. 2025.

Last Updated: - Updated example sentences
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