Sentence:  "Cordelia": Good my lord, / You have begot me, bred me, lov'd me: I / Return those duties back as are right fit, / Obey you, love you, and most honour you. / Why have my sisters husbands if they say / They love you all? Haply, when I shall wed, / That lord whose hand must take my plight shall carry / Half my love with him, half my care and duty: / Sure I shall never marry like my sisters, To love my father all. / "Lear": But goes thy heart with this? / "Cordelia": Ay, good my lord. / "Lear": So young, and so <WSD>untender</WSD>? / "Cordelia": So young, my lord, and true. 
Meaning of the word marked with <WSD> tags:  Lacking sympathy, heartless, not empathetic.