Against the law (7)

I think it could be either:

illegal

illicit

'against the law' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for illegal that I've seen before include "Black-market" , "Felonious" , "Forbidden" , "Such an immigrant" , "Prohibited by law" .)

I've seen this clue in The Times, The Guardian, the New York Times, The Telegraph, the Irish Times (Simplex), The Irish Times, the LA Times, the Wall Street Journal and The Sun.

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