legal的否定词

否定词是illegal，表示非法的，例如：

1、It is illegal to sell cigarettes to children who are under age.售香烟给未到法定年龄的儿童是非法的。

2、It is illegal to discriminate on grounds of race， sex or religion.因种族、性别或信仰而有所歧视是非法的。

3、It's illegal to drive through a red light.开车闯红灯是违章行为。