najszybsi
Najszybsi is the plural masculine form of the Polish superlative adjective najszybszy, meaning “the fastest.” It is used to describe a group that is the fastest within a defined category, such as people, vehicles, or performances.
In Polish grammar, najszybsi typically accompanies a noun and agrees with it in gender and number, as
Etymology and usage notes: the adjective combines the root szyb- (“fast”) with the comparative suffix -szybszy