rock solid
The phrase "rock solid" is often used to describe something that is extremely stable, reliable, or strong, drawing a comparison to the unyielding nature of rock.
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Definition
B2General
(informal)Extremely strong and unlikely to break or fail.
Example
- The foundation of the building needs to be rock solid before construction begins.
- The ice on the river was rock solid.
B2Personal Traits
(informal)Completely reliable or trustworthy.
Example
- She has a rock-solid reputation.
- Their relationship was rock solid.
B2Abstract Concepts
(informal)Unwavering or unshakeable.
Example
- His commitment to the project was rock solid.
- The political structure remained rock solid despite the challenges.
Similar
Terms that have similar or relatively close meanings to "rock solid":
solid as a rockrock hardsteady as a rockhard as nailsliving rocksolid compoundtough as nailsrock bottombuilt like a brick shithouserock onset in stoneget sturdysteady ondead setrock jockhard bygood as goldbuilt like a tankhit the rockcrystal clearclear as crystal