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Hard as a rock Meaning in English

expression

ˈhɑɹd/ /ˈæz/, /ˈɛz/ /ˈeɪ/, /ə/ /ˈɹɑk
HARD az uh RAHK
hˈɑːd/ /ˈæs/ /æɪ/ /ɹˈɒk
HARD az uh ROK

Definition

Used to describe something that is extremely hard, firm, or unyielding, just like a rock.

Usage & Nuances

Informal, often compares the texture or firmness of objects (like bread, mattresses, or muscles). Can also refer to someone's personality (emotionally tough), but that's less common. Used mainly in speech.

Example Sentences

This bread is hard as a rock.

basic

The old mattress is hard as a rock.

basic

The ground was hard as a rock after the summer sun.

basic

My muscles felt hard as a rock after months of working out.

natural

Those cookies are hard as a rock—you might break your teeth!

natural

I tried to bend the metal rod, but it's hard as a rock—wouldn't budge at all.

natural