<p><strong>adjective</strong></p><ul><li>apt or likely to change: the labile nature of language.</li><li>(in chemistry, biology, psychiatry, etc.) able or likely to change or break down easily, rapidly, or continually; unstable:<ul><li>labile emotions</li><li>labile blood pressure</li><li>cellular functions that seem to require different levels of labile zinc</li></ul></li></ul>