How can you put hardiness in a sentence?

Answer 1

Hardiness means self-assurance, so something like :

Using questionnaire, the low illness group had more hardiness.

may be used.

Having studied for hours, the student had more hardiness of doing well.

Answer 2

I can give you several sentences.

• This is a hardy variety of fruit tree.
• He has a hardy appetite.
• She has always had a hardy constitution.