This is the 9182nd most frequent Portuguese word.
cadastrada
Registered.
'cadastradas' is used in its plural form to agree with 'pessoas', describing people who previously completed the registration process.
No evento, todas as pessoas cadastradas receberão um brinde.
At the event, all registered individuals will receive a gift.
'cadastrada' is used as a past participle indicating a completed action where the user is now part of the system's registry.
A usuária está cadastrada no sistema.
The user is registered in the system.
'cadastrada' describes the state of the company after it has been added to the registry, again as a past participle acting as an adjective.