disqualify

verb (disqualifies, disqualifying, disqualified)

• declare (someone) ineligible for an office, activity, or competition because of an offence or infringement:he was disqualified from driving for six months she was disqualified after failing a drugs test (as adjective disqualified)he was hit by a disqualified driver
• (of a feature or characteristic) make (someone) unsuitable for an office or activity:a heart murmur disqualified him for military service