Both equally unique, but finding a necessary limitation in freedom, in order that such freedom can remain true freedom.
How, ‘God sets us free to be free for Him and as a result free for each other – the man for the woman, the woman for the man, both free for God, who in Jesus Christ, chooses and has chosen to be free for both’ [i]
All of that can be summarised as: Love and responsibility; ‘freedom in limitation’ because humanity cannot have only one in isolation from the other, without destroying both.
Source: [i] Barth, K. 1951, CD.III:4 (paraphrased) Tentative recommendation: Love & Responsibility, Karol Wojtyla [Pope John Paul II] Image is mine. Related post: When a Man Loves a Woman: Barth’s Freedom in Fellowship