rancid
🇺🇸
/ˈrænsɪd/
🇬🇧
/ˈrænsɪd/
having an unpleasant smell or taste, usually because of old or spoiled food
The old butter in the fridge had gone rancid, so it had to be thrown away.
冰箱里的旧黄油变质了,所以必须扔掉。