If you describe systems, beliefs, policies, or people as unreconstructed, you are critical of them because they have not changed at all, in spite of new ideas and circumstances.

一成不变的；墨守成规的

...the unreconstructed racism of the official opposition.

官方反对顽固守旧的种族主义思想

She accused him of being an unreconstructed male chauvinist.

她指责他是一个顽固不化的大男子主义者。