G0111–ἀθέμιτος–athemitos

And he said to them, You yourselves have knowledge that it is against the law for a man who is a Jew to be in the company of one who is of another nation; but God has made it clear to me that no man may be named common or unclean:

ἀθέμιτόν athemiton “unlawful”

Because for long enough, in times past, we have been living after the way of the Gentiles, given up to the desires of the flesh, to drinking and feasting and loose behaviour and unclean worship of images;

ἀθεμίτοις athemitois “in abominable”