About dwarf women

[Thinlómien]

It is said in the appendixes of LotR about dwarf women:

They are in voice and appearance, and in garb if they must go on a journey, so like to the dwarf-men that the eyes and ears of other peoples cannot tell them apart.

I understand the garb and even the voice, but appearance? Beard is an important part of the appearance of dwarf-men. So should we conclude that dwarf women have beards? (To me the idea sounds very stupid and un- Tolkien-like. I didn't like "Aragorn's" joke in the movie about dwarf women, I think it wasn't kind to the dwarves...) Or, if they haven't got beards, do they use false beards? (Sounds maybe even more stupid...) Or do they somehow hide their chin by scarfs and helmets? (A dwarf man using scarf around his face...?) Let's see what you think or know; I have no good answers...