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
Tiberius’ innovation pipeline of products and services is engineered to catalyze a strategic leap in defense – empowering the UK, the US and their allies with unmatched agility, precision and rock-solid resilience.
—New Atlas, 21 May 2025
The prospect of adding significantly to the federal deficit has given the normally rock-solid market for U.S. government debt a roller coaster feel lately.
—Andrew Ross Sorkin, New York Times, 20 May 2025
Foster plays psychiatrist Lilian Steiner, a rock-solid professional who has been doing this work a very long time.
—Pete Hammond, Deadline, 20 May 2025
The rock-solid performance offers precise tracking and a long battery life that keeps you gaming without interruptions.
—Shubham Yewale, PC Magazine, 20 May 2025
See All Example Sentences for rock-solid
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.
New Atlas, 21 May 2025
The prospect of adding significantly to the federal deficit has given the normally rock-solid market for U.S. government debt a roller coaster feel lately.
—Andrew Ross Sorkin, New York Times, 20 May 2025
Foster plays psychiatrist Lilian Steiner, a rock-solid professional who has been doing this work a very long time.
—Pete Hammond, Deadline, 20 May 2025
The rock-solid performance offers precise tracking and a long battery life that keeps you gaming without interruptions.
—Shubham Yewale, PC Magazine, 20 May 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 2 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share