Addicted means unable to stop using or doing something. Addicted to nicotine, become addicted, addicted to the game.
The clinical sense involves real changes in the brain's reward system and is not a matter of willpower, which is why treatment works better than blame. The loose use — addicted to a television series — is harmless but blurs a genuinely serious word.
1adjectiveaddictedUnable to stop using or doing something.
“He became addicted to painkillers after his back operation.”
addicted is a state.