This is the 3453rd most frequent Portuguese word.
memoráveis
Memoráveis: Memorable; worthy of being remembered.
In this sentence, 'memoráveis' modifies 'viagens' (trips), describing them as unforgettable and remarkable.
As viagens que fizemos para a floresta amazônica foram memoráveis.
The trips we made to the Amazon rainforest were memorable.
Here, 'memoráveis' is used to characterize 'momentos' (moments) as significant and worth remembering.
Os momentos memoráveis de nossa infância sempre nos trazem alegria.
The memorable moments from our childhood always bring us joy.
In this example, 'memorável' (singular form) defines 'evento' (event) as historically noteworthy and impactful.