Which of the following words is closest in meaning to “Illicit”?

Illicit means forbidden by law; unlawful.

• Correct answer - unlawful: it has the same meaning as Illicit.
• self-explanatory: clear without further explanation - wrong, it does not mean the same as Illicit.
• broad-minded: tolerant of different views - wrong, it does not mean the same as Illicit.
• illiterate: unable to read or write - wrong, it does not mean the same as Illicit.