noun
statement of opposition; opposition declaration
A formal or public statement expressing opposition to a plan, policy, or action. Often used in political, organizational, or activist contexts.
市民団体が開発計画に対する反対声明を発表した。
A citizens' group issued a statement of opposition against the development plan.
組合は賃下げに反対声明を出した。
The union released an opposition declaration against the wage cut.
Compound of 反対 (opposition) and 声明 (declaration, statement).