Definition of antinomy
1: a contradiction between two apparently equally valid principles or between inferences correctly drawn from such principles
2: a fundamental and apparently unresolvable conflict or contradiction
Source: https://www.gotquestions.org/antinomy.html
The mind of man is limited; our intellect is fallible. This is not something we like to hear or accept, but it is the truth of the matter. As Kant pointed out, you can take two equally and obviously true rational statements, compare them to one another, and disprove them both. This should tell us something. The very existence of antinomy says that there are things in the universe that we do not have the equipment to fathom.
antinomy is the result of a finite being trying to grasp the infinite, and failing.
Flatland: A Romance of Many Dimensions