1. A charitable or philanthropic organization that has not been officially registered with government authorities or regulatory bodies
The unregistered foundation was operating without proper legal documentation.
A fundação não registrada estava operando sem documentação legal apropriada.
2. An organization established to provide aid or support that lacks official recognition or legal status
Many unregistered foundations in developing countries struggle to gain legitimacy.
Muitas fundações não registradas em países em desenvolvimento lutam para ganhar legitimidade.