v. t. [ 1st pref. un- + teach. ] [ 1913 Webster ]
1. To cause to forget, or to lose from memory, or to disbelieve what has been taught. [ 1913 Webster ]
Experience will unteach us. Sir T. Browne. [ 1913 Webster ]
One breast laid open were a school Which would unteach mankind the lust to shine or rule. Byron. [ 1913 Webster ]
2. To cause to be forgotten; as, to unteach what has been learned. Dryden. [ 1913 Webster ]