Rock solid

Definition 1 of 3

Pro Tip 1/2

Used to emphasize the unchanging nature of an object or situation.

The company's rock-solid financial status ensured its market dominance.

Pro Tip 2/2

Expresses a strong belief that something won't fail or change.

With our rock-solid planning, the event was a guaranteed success.

Humans forget easily. That's why you should download WordUp: Smart reminders, word games, AI practice, and much more!

As you browse the web instantly look up words you don’t know.