Tough as nails
Meaning
To be extremely resilient, strong, and enduring, both physically and mentally.
Origin
Nails, those simple yet indispensable fasteners, are renowned for their unyielding strength. They endure repeated blows from a hammer, resisting deformation and securing materials with impressive steadfastness. This inherent quality, their resistance to bending, breaking, or loosening, quickly cemented their status as a powerful, everyday metaphor. Emerging likely in the 19th century, in an era of burgeoning industry and manual labor, the image of a nail that held firm through immense pressure became a common shorthand for a person of formidable physical and mental fortitude. It evokes the image of someone who, despite facing repeated hardships, remains straight, true, and steadfast, just like a perfectly driven nail.
Examples
- Despite her small stature, the veteran climber was tough as nails, having scaled some of the world's most challenging peaks.
- After surviving a harsh winter and a severe illness, the old farmer proved he was tough as nails, bouncing back with incredible vigor.