Antonyms of adj medicinal

1 sense of medicinal

Sense 1
medicative, medicinal -- (having the properties of medicine; "medicative drugs"; "medicinal herbs"; "medicinal properties")

INDIRECT (VIA healthful) -> unhealthful -- (detrimental to good health; "unhealthful air pollution"; "unhealthful conditions in old apartments with peeling lead-based paint")

Similarity of adj medicinal

1 sense of medicinal

Sense 1
medicative, medicinal -- (having the properties of medicine; "medicative drugs"; "medicinal herbs"; "medicinal properties")
       => healthful (vs. unhealthful) -- (conducive to good health of body or mind; "a healthful climate"; "a healthful environment"; "healthful nutrition"; "healthful sleep"; "Dickens's relatively healthful exuberance")