This is the 4216th most frequent German word.
besseren
"Better" (comparative form of "gut" - good).
'Bessere' is used as an attributive adjective to describe 'Idee', indicating improvement or superiority.
Ich habe eine bessere Idee.
I have a better idea.
'Besseren' is employed as an attributive adjective modifying 'Spieler', denoting enhancement.
Er hat versucht, mich im Spiel zu einem besseren Spieler zu machen.
He tried to make me a better player in the game.
'Besseren' here describes 'Zukunft' attributively, expressing aspiration for improvement.