rock hard

Examples (10)

• The toffee was rock hard.
• This old bread has gone rock hard.
• The ground was frozen rock hard, so we couldn't dig.
• After months of training, his abdominal muscles were rock hard.
• I couldn't sleep because the mattress felt rock hard.
• I need to defrost this meat; it's still rock hard.
• Be careful, the clay will become rock hard once it dries.
• Why is this cheese rock hard? I just bought it yesterday.
• He tried to bite the candy, but it was rock hard.
• The soil in the garden becomes rock hard during a drought.