Legalism is often understood as a strict adherence to laws or rules, particularly in a religious or moral context. The opposite of legalism can be seen as antinomianism.
Antinomianism comes from the Greek roots meaning ‘against the law.’ In this context, it refers to the belief that under the gospel dispensation of grace, the moral law is of no use or obligation to Christians. This perspective emphasizes faith and grace over the observance of laws.
In everyday terms, while legalism focuses on following rules to attain righteousness or spiritual standing, antinomianism suggests that such rules are not necessary for one’s relationship with the divine. Both extremes can lead to misunderstandings in spiritual practice—one can lead to a burdensome practice of faith, while the other risks moral relativism.