adj. (ier, lest) 1 robust; capable of enduring difficult conditions. 2 (of a plant) able to grow in the open air all year. n hardiness n. [French hardi made bold]
adj. (ier, lest) 1 robust; capable of enduring difficult conditions. 2 (of a plant) able to grow in the open air all year. n hardiness n. [French hardi made bold]