The Dane still finds it difficult to understand Arsenal's decision to deny him a move away from the club.
"It was a terrible situation. My last year at Arsenal was a waste of time," Bendtner told Tipsbladet.
"It was worthless that Arsenal did not allow me to leave.
"A club like Arsenal could easily have found someone else to play my role. They would have had no trouble finding a player who could do what they wanted me to do."
For the big stories and the banter follow us on Twitter: @tribalfootball