The quality or state of being old or ancient. The hoariness of the ancient ruins added to their mystique and allure.
The quality of being gray or white with age. The hoariness of his beard was a testament to his many years of wisdom and experience.
A covering or growth of short, whitish or grayish hairs, especially on the surface of a plant or an insect. The hoariness on the cactus stems reflects sunlight and prevents excessive water loss.