Wiktionary
a. Not addictive; not able to cause addiction.
WordNet
adj. not causing or characterized by addiction; "for years tobacco companies have contended that tobacco is nonaddictive" [ant: addictive]
Usage examples of "nonaddictive".
They had previously availed themselves of the free nonaddictive drug that the film distributor had sent along with the tapes.
Behind them the video begins to hype some new cocaine substitute, guaranteed nonaddictive, the audio filled with the tasteful hissing of compressed gases, the delighted exclamations of a young couple obviously in love.
Siobhan thought he always looked as if there ought to be a roll-up cigarette sticking out of the corner of his mouth, but even the latest noncarcinogenic, nonaddictive, nonpolluting comfort smokes would never be allowed in the enclosed environment of a Moon base.