Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hardiness

2 senses of hardiness

Sense 1
robustness, hardiness, lustiness, validity -- (the property of being strong and healthy in constitution)
       => strength -- (the property of being physically or mentally strong; "fatigue sapped his strength")

Sense 2
boldness, daring, hardiness, hardihood -- (the trait of being willing to undertake things that involve risk or danger; "the proposal required great boldness"; "the plan required great hardiness of heart")
       => fearlessness -- (the trait of feeling no fear)