Difference between Rock-ribbed and Die-hard

What is the difference between Rock-ribbed and Die-hard?

Rock-ribbed as an adjective is having rocky cliffs or outcroppings while Die-hard as an adjective is unreasonably or stubbornly resisting change.

Part of speech: adjective

Definition: having rocky cliffs or outcroppings obstinately firm and unyielding in one's opinions

Part of speech: adjective

Definition: Unreasonably or stubbornly resisting change.

Part of speech: noun

Definition: A person with such an attitude.

We hope you now know whether to use Rock-ribbed or Die-hard in your sentence.