antinomian (n.) Look up antinomian at Dictionary.com
"one who maintains that, by the dispensation of grace, the moral law is not binding on Christians," 1640s, from Medieval Latin Antinomi, name given to a sect of this sort that arose in Germany in 1535, from Greek anti "opposite, against" (see anti-) + nomos "rule, law," from PIE root *nem- "to divide, distribute, allot" (see nemesis). As an adjective from 1640s.