changed; different

She said her life was drastically altered.

I've given a slightly altered baking time in this recipe.

Everything seemed altered when I returned. 当我回来时，一切似乎都变了。

(of an animal) having had part of its sexual organs removed, so that it cannot produce young animals

The permit costs $9 for an altered dog or cat and $50 for an unaltered dog or cat.

Tenants may keep pets but they must be altered and fully vaccinated. 租户可以养宠物，但宠物必须绝育并接种疫苗。