Dirty in a way that could make people sick. This is not the word for a messy desk or a shirt with a stain — `unsanitary` is about hygiene, about germs and disease.

Dirty in a way that could make people sick骯髒到會讓人生病的程度。This is not the word for a messy desk or a shirt with a stain這個字不是用來說桌子亂或衣服有污漬 — `unsanitary` is about hygiene, about germs and disease而是關於衛生，關於細菌和疾病的。

A kitchen where raw meat sits next to cut fruit is unsanitary. A hospital that reuses needles is unsanitary. Toilets with no running water are unsanitary.

A kitchen where raw meat sits next to cut fruit生肉和切好的水果放在一起的廚房 is unsanitary就是unsanitary。A hospital that reuses needles重複使用針頭的醫院 is unsanitary也是unsanitary。Toilets with no running water沒有自來水的廁所 are unsanitary同樣是unsanitary。

The word always implies a health risk, not just an unpleasant look.

The word always implies a health risk這個字總是暗示著健康風險, not just an unpleasant look而不只是外觀不好看。

Because of that, it belongs to official language: health inspectors, news reports, government notices, court cases. When a restaurant gets shut down in Taiwan, the English-language news will say it was closed for 'unsanitary conditions'. Ordinary people talking about their friend's messy apartment would say 'gross' or 'filthy', not 'unsanitary'.

Because of that正因如此, it belongs to official language它屬於正式的用語: health inspectors衛生稽查人員, news reports新聞報導, government notices政府公告, court cases法庭案件。When a restaurant gets shut down in Taiwan在台灣，餐廳被勒令停業時, the English-language news will say it was closed for 'unsanitary conditions'英文新聞會說是因為『unsanitary conditions（不衛生的環境）』被關閉。Ordinary people talking about their friend's messy apartment一般人聊到朋友家裡亂 would say 'gross' or 'filthy'會說『gross』或『filthy』, not 'unsanitary'而不會說『unsanitary』。

You will also meet `insanitary`, which means exactly the same thing and is more common in British writing. Both are correct; American English strongly prefers 'unsanitary'.

You will also meet `insanitary`你也會遇到『insanitary』這個字, which means exactly the same thing它的意思完全一樣, and is more common in British writing在英式寫作裡更常見。Both are correct兩者都對; American English strongly prefers 'unsanitary'美式英文則強烈偏好用『unsanitary』。