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

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

The Ryzen 9 processor is tuned for gaming, with great heat management and power efficiency, and the RTX 5070 graphics card gives you rock-solid 1440p gameplay at high frame rates. — K. Thor Jensen, PC Magazine, 23 June 2026

Boozer is the type of rock-solid producer the Grizzlies have desperately needed. — Julia Poe, Chicago Tribune, 22 June 2026

The two seemed like a rock-solid couple for almost two decades. — Lizzie Lanuza, StyleCaster, 16 June 2026

Supertramp gives its camper module a rock-solid construction and a highly functional interior that buyers can embellish à la carte. — New Atlas, 4 June 2026

Word History

First Known Use

1871, in the meaning defined above

Rhymes for rock-solid

• semisolid
• solid
• squalid
• stolid