This is the 10790th most frequent Portuguese word.
imaginado
"Imagined" (conceived or thought up in the mind).
Here, 'imaginado' is used in the compound past perfect tense as a past participle indicating an action formed within the context of 'tinha imaginado' to express imagining or conceiving something within the past
Eu nunca tinha imaginado que isso fosse possível.
I had never imagined that this could be possible.
In this instance, 'imaginado' is again employed in the past perfect tense to refer to the act of conceptualizing his speed prior to realizing the actual context
Ele foi mais rápido do que eu tinha imaginado.
He was faster than I had imagined.
The usage of 'imaginado' is within a conditional structure where it conveys the idea of imagining something in a hypothetical past scenario