disqualify - definition and synonyms

verb [transitive] [often passive] 

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present tense
present participledisqualifying
past tensedisqualified
past participledisqualified
  1. to not allow someone to do something because they have committed an offence
    disqualify someone from doing something:

    He had been disqualified from driving on three previous occasions.

    1. a.
      to not allow someone to take part in a competition, or to force them to leave it, usually because they have done something that is not allowed by the rules
      disqualify someone from something:

      He was disqualified from the competition for cheating.