simple past tense and past participle of addict
"After years of using heroin, he was addicted to drugs until he finally entered rehabilitation."
In plain English: To be addicted means to have such a strong need for something that you can't stop using it even when it hurts you.
"The children became addicted to playing video games all day long."
compulsively or physiologically dependent on something habit-forming
"she is addicted to chocolate"
"addicted to cocaine"
Having a biochemical addiction.
"After years of heavy use, he finally admitted to being addicted to heroin due to his brain's severe biochemical dependency."
In plain English: Addicted means being so hooked on something that you can't stop doing it even though it might hurt you.
"He is addicted to his new video game and spends hours playing every night."