as tough as nails

phrase

of a person

: very tough : not sentimental or easily influenced

When she's negotiating a contract, she can be as tough as nails.

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“As tough as nails.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/as%20tough%20as%20nails. Accessed 13 Mar. 2026.

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as tough as nails

phrase

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