Yes, I know the ESV Study Bible is all the rage now. But anyway, here is the ESV Reformation Study Bible's note on Antinomianism (p. 1831).
Antinomianism means "opposed to law." Antinomian views are those denying that God's law in Scripture should directly control the Christian's life.
Dualistic antinomianism appeared early in the Gnostic heresies, like those opposed by Peter and Jude (2 Pet. 2; Jude 4-19). The Gnostics taught that salvation was for the soul only, making bodily behavior irrelevant both to God's interest and to the soul's health. The conclusion was that one may behave riotously and it will not matter
A "spiritual" antinomianism puts such trust in the Holy Spirit's inward prompting as to deny any need to be taught by the law how to live. Freedom from the law as a way of salvation is assumed to bring with it freedom from the law as a guide to conduct. In the first 150 years of the Reformation era this kind of antinomianism was common. The Corinthian church may have been in the grip of this error, since Paul warns them that a truly spiritual person acknowledges the authority of God's Word (1 Cor. 14:37; cf. 7:40).
Another kind of antinomianism begins from the point that God does not see the sin in believers, because they are in Christ, who kept the law for them. From this they draw the false conclusion that their behavior makes no difference, provided they keep on believing. But 1 John. 1:8-2:1 and 3:4-10 point in a different direction. It is not possible to be in Christ and at the same time embrace sin as a way of life.
Some dispensationalists have held that since Christians live under a dispensation of grace, not law, keeping the moral law is at no stage necessary for them. Rom. 3:31 and 1 Cor. 6:9-11 clearly show, however, that keeping the law is a continuing obligation for Christians.
It is sometimes said that the motive and intention of "love" is the only law God requires of Christians. The commands of the Decalogue and other ethical parts of Scripture, although they are ascribed to God directly, are regarded as no more than guidelines that love may at any time disregard. But Rom. 13:8-10 teaches that specific commands reveal what true love it. The law of God exposes the counterfeit love that will not accepts its responsibility towards God and neighbor.
The moral law revealed in the Decalogue and expounded in other parts of the Bible is an expression of God's righteousness, given to be a code of practice for God's people in every age. The law is not opposed to the love and goodness of God, but shows what it is in action. The Spirit gives Christians the power to observe the law, making us more and more like Christ, the archetypal observer of the law (Matt. 5:17)
As it can be seen, Antinomianism does not necessarily include the teaching that Christians can keep on sinning. In fact, the very term itself (anti-: against; nomon: law) any teaching that removes the law from the Christian life. Definition 2 (spiritual antinomianism) and 4 (hyper-Dispensational cheap grace antinomianism) are probably the ones to focus on. Joseph Prince is not a type 1 or 3 antinomian, but he is most certainly a type 2 and 4 antinomian. In his book Destined to Reign, Prince denies being an antinomian but he only considers the type 3 version, not the others of which he is blatantly guilty of.