| unausrottbar | ineradicable |
| unaufhaltbar | unstoppable |
| unausführbar | impracticable |
| unanfechtbar | incontestable |
| unaussprechbar | unpronounceable |
| unabsehbar | incommensurable unforeseeable |
| unantastbar | inviolable untouchable indefeasible |
| unauffindbar | nowhere to be found |
| ausfaltbar | foldout |
| Ausrottung | extermination |
| ausrotten | eradicate |
| auswertbar | useful |
| verrottbar | putrescible |
| unkaputtbar | indestructible unbreakable |
| unbestreitbar | undeniable indisputable unquestionable |
| unsichtbar | invisible |
| unzumutbar | unreasonable |
| unersetzbar | irreplaceable |
| unabweisbar | peremptory |
| unabdingbar | indispensable inalienable |