What is another word for addictive?

Here are some other words for "addictive", depending on the context:

General:

* Compulsive

* Habit-forming

* Engrossing

* Alluring

* Entrancing

* Captivating

* Beguiling

* Mesmerizing

* Hooking

* Intoxicating

More formal:

* Dependency-inducing

* Habit-producing

* Substance-dependent

Informal:

* Can't-put-it-down

* Got-to-have-it

* Can't-get-enough-of

Negative connotations:

* Destructive

* Harmful

* Unhealthy

* Devastating

* Vicious

The best word to use will depend on the specific context and the nuance you want to convey.