Adebayor also lashed out at former Arsenal team-mate Nicklas Bendtner, with whom he enjoyed a famously stormy relationship during their time together.
"Nicklas had a very easy route. He had the chance to be in the Arsenal academy, the chance to be an international for Denmark," he added. "Football doesn't stop there. You are young, you have to learn. No matter what quality you have, you have to listen to people, let people help you be good.
"If Cristiano Ronaldo had gone to Manchester United and thought 'I'm good', he would not have become the best player in the world.
"He worked with the United players, tried to adapt his style. Those United players made him big, Nicklas just thinks he can make himself big."
Recalling one particular incident, which ended in a physical confrontation against Tottenham last January, he said: "Nicklas showed me the finger. I am sorry, you cannot show your partner the finger."