Unhealthful (adjective)

Not conducive to or promoting good health; not healthy; unhealthful.

Origin:

From un- (not) + healthful (conducive to or promoting good healt.h)

Examples:

1. The food was unhealthful, so the doctor advised to avoid it.
2. The air was unhealthful, so the people had to wear masks.
3. The water was unhealthful, so the animals didn't drink it.
4. The environment was unhealthful, so the plants didn't grow well.
5. The place was unhealthful, so the visitors felt sick.