Expert as in determined Extremely tough or unyielding, often used to describe a person who is unemotional or difficult to disturb. Clear All
2 Example Sentences Showcasing the Meaning of 'Hard As Nails'
The CEO, known for being hard as nails, led the company through tough times with unwavering determination.
The scientist was hard as nails, dedicating long hours to meticulous research without a hint of weariness.
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