This is the 12482nd most frequent Portuguese word.
suficientes
Enough; sufficient.
The word 'suficientes' is used as an adjective to modify 'cadeiras', indicating a quantity that is enough.
Eu trouxe cadeiras suficientes para todos.
I brought enough chairs for everyone.
Here, 'suficientes' modifies 'argumentos', expressing adequacy in quantity.
Eles não têm argumentos suficientes para justificar sua posição.
They do not have enough arguments to justify their position.
In this case, 'suficiente' describes 'tempo', focusing on the adequacy of time available.