This is the 2702nd most frequent Portuguese word.
prisional
"Prisional" means "relating to prison."
Here, 'prisional' is an adjective referring to anything related to the prison system.
O sistema prisional enfrenta muitos desafios atualmente.
The prison system faces many challenges currently.
In this sentence, 'prisional' modifies 'estrutura,' indicating that the structure pertains to prisons.
A estrutura prisional da cidade está desfalcada.
The city's prison infrastructure is depleted.
Here, 'prisionais' (plural form of 'prisional') modifies 'direitos,' indicating rights that pertain to prisoners or the prison context.