This is the 16786th most frequent Polish word.
wygodnie
Comfortably.
Here, 'wygodnie' is used as an adverb describing the manner of sitting, indicating comfort.
Zawsze siadam wygodnie na kanapie po pracy.
I always sit comfortably on the couch after work.
In this context, 'wygodnie' is again an adverb describing the chair's quality when used for sitting.
Czy to krzesło jest wygodnie do siedzenia przez dłuższy czas?
Is this chair comfortable to sit on for an extended period?
Here, 'wygodnie' describes the way the speaker positioned themselves, emphasizing comfort.