| kunterbunt | colorful |
| Unterkunft | accommodation lodging |
| Unterbühne | mezzanine |
| Kummerbund | cummerbund |
| Kundgebung | manifestation display enunciation show demonstration avowal declaration |
| Unterton | subharmonic |
| Unterzug | girder |
| knallbunt | garish |
| untertan | subject |
| Untertan | subject |
| Unterart | subspecies |
| Unterbau | foundation |
| Unterbauch | lower abdomen underbelly |
| Untergang | downfall sinking decline |
| Untergrund | bedrock (geol.) subfloor subgrade (constr., tech., geol.) subsoil substrate substratum base basis footing ground base coat (paint etc.) base material surface undercoat (paint etc.) underground |
| Unterhalt | alimony upkeep |
| Unterling | underling |
| Untermenü | submenu |
| Unterwelt | underworld nether world netherworld |
| kongruent | congruent |