An adornment is generally an accessory or ornament worn to enhance the beauty or status of the wearer. They are often worn to embellish, enhance, or distinguish the wearer, and to define cultural, social, or religious status within a specific community.
In the case of other Muharrams, such as uncles , there is not much difference with others like father or brother, except for differences based on the culture of that community. But logically there is difference between husband and others.
as salam alaikum
The rules of mahramiyyah apply to all mahrams: those mentioned in the ayah and those who are not mentioned.
With prayers for your success.