rock-hard

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Like the mussels, it requires “crystal-clear, rock-hard, ice-cold water,” said Robert T. Dillon, a former biology professor who runs the Freshwater Gastropods of North America Project, which inventories snail species.

From Slate • Apr. 27, 2026

But the rock-hard suspensions of the ground-effect cars were not popular at all, and the chassis side of the new rules, most would agree, has been a step in the right direction.

From BBC • Mar. 8, 2026

Over time, this so-called multiyear ice accumulates to several yards’ thickness, loses much of its salt content and becomes rock-hard.

From The Wall Street Journal • Nov. 30, 2025

Swaminathan explained that fast-growing species benefitting from the disease create a more seaweed-dominated environment compared to the rock-hard reef structures.

From Science Daily • May 3, 2024

She rummaged around for a bit, then suddenly drew forth a small, grime-covered lump of maple sugar, rock-hard and wonderful.

From "The Birchbark House" by Louise Erdrich