Thanks for the reply!
When I tried to test it I inserted a nb-hyphen using the keyboard shortcut I found on the Microsoft website, CTRL+SHIFT+HYPHEN (CMND for Mac).
You're saying that's not the correct way to add a nb-hyphen that will survive being imported into InDesign? Even if the font used throughout supports 'real' nb-hyphens?
This still seems to be a bit of a bug with InDesign's Word import, if not in a technical sense at least in terms of useability. Wouldn't it make more sense to look for the 'fake' hyphens and either translate them into InDesign-recognized nb-hyphens or at least into plain vanilla hyphens? It also seems strange that Word wouldn't insert a proper Unicode nb-hyphen when the font -does- support them.