Idiom: tough as nails (hard as nails)
— She may be the smallest pup but she’s as tough as nails.
— The other team was hard as nails and we were intimidated by them from the very beginning.
— Ask Brian to help move the desk—he's tough as nails.
— My grandmother is tough as nails. She just competed in the Masters World Powerlifting Championships and can bench press more than I can.
— Be nice to the director's secretary. She's hard as nails and can make your life difficult.
— If anyone can deal with sensitive customer relations issues, it's Sandy. She's tough as nails.
— Our dad has always been tough as nails, even when our sister died in an accident.
— You don't have to always be hard as nails. It's okay to ask for and receive help.
strong / determined:
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