<p><strong>Noun:</strong></p><ul><li>Hoarfrost</li><li>Rime</li><li>Infirmity</li><li>Weakness</li></ul><p><strong>Hoarfrost:</strong></p><ul><li>A white or gray crystalline deposit of frozen water vapor that forms in humid air.</li><li>A thin coating of ice that forms on cold surfaces.</li></ul><p><strong>Rime:</strong></p><ul><li>Frost formed on cold objects by the freezing of water vapor in the air.</li><li>A coating of ice crystals on surfaces caused by the deposition of water vapor.</li></ul><p><strong>Infirmity:</strong></p><ul><li>The state of being weak or ill, especially due to old age.</li></ul><p><strong>Weakness:</strong></p><ul><li>The quality or state of being weak; lack of strength or firmness.</li></ul><p><strong>Adjective:</strong></p><ul><li>Hoary</li></ul><p><strong>Hoary:</strong></p><ul><li>Gray or white with age; ancient or venerable.</li><li>Covered with hoarfrost or having a frosted appearance.</li></ul>