1. not clean or sanitary; likely to cause disease or infection

Examples

• The restaurant was closed due to unhygienic kitchen conditions.
• It’s unhygienic to share personal items like toothbrushes.
• The unhygienic water supply caused widespread illness in the village.
• Workers were required to wash their hands to avoid unhygienic food handling.
• The hospital inspector found several unhygienic practices in the ward.
• Leaving food uncovered is unhygienic and attracts pests.