This is the 8513th most frequent Swedish word.
beslutande
"Beslutande" means "decision-making" or "decisive."
Here 'beslutande' acts as an adjective describing the assembly as making decisions.
Den beslutande församlingen godkände förslaget.
The decision-making assembly approved the proposal.
In this case, 'beslutande' is used as an adjective describing someone's trait of being decisive.
Efter en lång debatt blev han beslutande i frågan.
After a long debate, he became decisive in the matter.
The word 'beslutande' here modifies the noun instans, indicating its role in making decisions.