unlawful; illegal
unreasonable; outrageous; unjust; unwarranted
不法駐車は罰金の対象だ。
Illegal parking is subject to a fine.
不法に入国した外国人が摘発された。
Foreigners who entered the country illegally were caught.
企業の不法行為が明らかになって問題となった。
The company's illegal conduct came to light and caused an uproar.