Antonyms of adj drug-free

1 sense of drug-free

Sense 1
drug-free -- (characteristic of a person not taking illegal drugs or of a place where no illegal drugs are used)

INDIRECT (VIA sober) -> intoxicated, drunk, inebriated -- (stupefied or excited by a chemical substance (especially alcohol); "a noisy crowd of intoxicated sailors"; "helplessly inebriated")

Similarity of adj drug-free

1 sense of drug-free

Sense 1
drug-free -- (characteristic of a person not taking illegal drugs or of a place where no illegal drugs are used)
       => sober (vs. intoxicated) -- (not affected by a chemical substance (especially alcohol))