1. A reference to the emphatic dismissal of something or someone; rejective: A veto can be considered to be a repudiative act.

In the story Susan was reading, the father decided on repudiative action against his son Jeff and disowned him after the money was stolen from the safe in the library.
2. Descriptive of rejecting with disapproval or condemnation: Many people are repudiative of President Trump's political or economic positions.