kind·ly / ˈkīn(d)lē/ • adv. in a kind manner: “Never mind,” she said kindly. ∎ please (used in a polite request or demand, often ironically): will you kindly sign the enclosed copy of this letter.• adj. (-li·er , -li·est ) kind; warmhearted; gentle: he was a quiet, kindly man. DERIVATIVES: kind·li·ness n.