legal的否定詞

否定詞是illegal，表示非法的，例如：

1、It is illegal to sell cigarettes to children who are under age.售香煙給未到法定年齡的兒童是非法的。

2、It is illegal to discriminate on grounds of race， sex or religion.因種族、性別或信仰而有所歧視是非法的。

3、It's illegal to drive through a red light.開車闖紅燈是違章行為。