(n.) A proving to be false or erroneous; confutation; refutation; as, to offer evidence in disproof of a statement.

abjuration abjurement abrogation absolute contradiction annulment contradiction contrary assertion contravention controversion countering crossing denial disaffirmation disallowance disavowal disclaimer disclamation disownment forswearing gainsaying impugnment nullification recantation refutation renunciation repudiation retractation retraction revocation