Unhygienic (adjective)

Not conforming to principles of health and hygiene.

Origin:

Late 18th century; earliest use found in johnson's dictionary of the english language (1755). from un- + hygienic, after french hygiénique.

Examples:

1. The food in this restaurant is unhygienic and unhealthy.
2. The school's bathroom was unhygienic and dirty.
3. It is unhygienic to share your toothbrush with someone else.
4. She had to throw away her make-up after she found out it was unhygienic.
5. The unhygienic conditions in the hospital led to the spread of diseases.