Not for everyone, but as someome who has smoked it for years I can tell you without a doubt that some people can get addicted. Personally ive never had an addiction to the stuff and have quit on several occasions for a number of reasons. I have had friends that were clearly addicted though, they would go around asking people to give them a hit because they apent alll their paycheck on weed the day before, and when they hadnt smoked in any given day they would act jumpy amd be irritable. It wasnt like a crack addiction wjere they end up homeless because of it but it certainly had negative effects on their lives.