addictive

Universal Words adjective 1 if a drug is addictive, it makes people unable to stop taking it: Heroin is highly addictive. * Marijuana is said to be psychologically though not physically addictive. 2 if an activity or type of behaviour is addictive, people need to do it as often as possible because they enjoy it: I find jogging very addictive. * Some people have an addictive personality.