You searched for: “abstention
abstention (s) (noun), abstentions (pl)
1. Voluntarily doing without something: Susan's abstention from chocolate was a choice she made because it was causing skin problems.
2. A refusal to vote either for or against a proposal: The committee vote resulted in five ayes, ten nays, and four abstentions.
3. The deliberate choice of not doing something: The abstention by the mayor during the vote resulted in the proposal being defeated.