In considering the conflict between the sovereignty of God in election and the human responsibility, J.I. Packer writes: What is an antinomy? The Shorter Oxford Dictionary defines it as ';”a contradiction between conclusions which seem equally logical, reasonable or necessary.” For our purposes, however, this definition is not quite accurate; the opening words should read “an appearance of contradiction.” For the whole point of an antinomy – in theology, at any rate – is that it is not a real contradiction, though it looks like one. It is an apparent incompatibility between two apparent truths. An antinomy exists when a pair of principles stand side by side, seemingly irreconcilable, yet both undeniable.
J.I. Packer