Idiom
hard nut to crack
Meaning
A problem that is challenging to solve.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
Examples
“This math problem is a hard nut to crack.”
“The company tried to improve sales, but the local market proved to be a hard nut to crack.”
“Despite the team's extensive research and innovative strategies, the underlying cause of the system failure remained a hard nut to crack for the engineers.”
Examples
simple
“This math problem is a hard nut to crack.”
contextual
“The company tried to improve sales, but the local market proved to be a hard nut to crack.”
complex
“Despite the team's extensive research and innovative strategies, the underlying cause of the system failure remained a hard nut to crack for the engineers.”
Key words
Related idioms
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