Unanimous

Unanimity is agreement by all people in a given situation. Groups may consider unanimous decisions as a sign of agreement, solidarity, and unity. Unanimity may be assumed explicitly after a unanimous vote or implicitly by a lack of objections. It does not necessarily mean uniformity and can sometimes be the opposite of majority in terms of outcomes.

Practice varies as to whether a vote can be considered unanimous if some voter abstains. In Robert's Rules of Order, a "unanimous vote" is not specifically defined, although an abstention is not counted as a vote regardless of the voting threshold. Also in this book, action could be taken by "unanimous consent", or "general consent", if there are no objections raised. However, unanimous consent may not necessarily be the same as a unanimous vote (see Not the same as unanimous vote). In either case, it does not take into account the members who were not present.

In contrast, a United Nations Security Council resolution is not considered "unanimous" if a member abstains. In the European Union, the Treaty of Amsterdam introduced the concept of "constructive abstention", where a member can abstain in a vote where unanimity is required without thereby blocking the success of the vote. This is intended to allow states to symbolically withhold support while not paralysing decision-making.

The occurrence of unanimity in a representative democracy can be elusive with the diversity and variety of opinions in a participatory democracy. Unanimity is often a political endeavor. Although governments and international organizations may occasionally achieve unanimous decisions, popular consent is most often a more achievable aspiration for elected officials.

The legitimacy supposedly established by unanimity has been used by dictatorial regimes in an attempt to gain support for their position. Participants in a legislature may be coerced or intimidated into supporting the position of a dictator, with the legislature becoming little more than a rubber stamp for a more powerful authority.

...
Wikipedia