Hamilton made it back-to-back drivers' titles last year after a dominant campaign saw him crowned with three races to spare.
"He (Lewis) is only going to get better, he is only going to get stronger. He has another seven to 10 years left in the sport and he is extremely competitive. He is still young so he has quite a few left in him," Lewis' father Anthony was quoted as saying by Sky Sports on Monday.
Despite having many interests outside of F1, including in the music industry where Hamilton has recorded a studio album, his father doesn't see him walking away from the sport any time soon.
"You can never say never, but I don't believe so. Lewis is a competitive soul, he loves motor racing and he loves to win," he said.
"As long as he has got that spirit he is going to remain in F1. I think he has another seven years minimum left in the business. That is bad news for everyone else," he added.