<p><strong>Verb (used with object)</strong></p><ul><li>to make or cause to become worse; diminish in ability, value, excellence, etc.; weaken or damage: to impair one's health; to impair negotiations.</li><li>Antonyms: repair</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to grow or become worse; lessen.</li></ul><p><strong>Noun (Archaic)</strong></p><ul><li>impairment.</li></ul><p><strong>End of Response</strong></p>