Modifies a noun

• drug: Under normal circumstances Bahai's abstain from alcohol and from other harmful or habit-forming drugs.

Modifying Another Word

• not: Less than two years ago, GlaxoSmithKline was running TV commercials on US nationwide TV claiming that paroxetine was " not habit-forming " .

Used with adjective complement

• become: Clients now carry out actions one by one - until they become habit-forming.