1. A day that is engaging, noteworthy, or holds one's attention due to unusual or stimulating events or experiences
Yesterday was an interesting day because I met someone new at work.
Ontem foi um dia interessante porque conheci alguém novo no trabalho.
2. A day filled with curiosity-provoking or thought-stimulating moments
We had an interesting day at the museum exploring the new exhibition.
Tivemos um dia interessante no museu explorando a nova exposição.