| unanfechtbar | incontestable |
| anfechtbar | contestable disputable |
| unaufhaltbar | unstoppable |
| unabsehbar | incommensurable unforeseeable |
| unantastbar | inviolable untouchable indefeasible |
| unfehlbar | infallible unfailing unerring |
| unbrechbar | uncrackable |
| Nachtbar | nightclub |
| unfruchtbar | infertile |
| unsichtbar | invisible |
| unabweisbar | peremptory |
| unausführbar | impracticable |
| unausrottbar | ineradicable |
| unabwendbar | inevitable |
| unachtsam | distracted |
| unauffindbar | nowhere to be found |
| Anfechtung | appeal |
| anfechten | contest appeal |
| anrechenbar | deductible |
| ansprechbar | addressable responsive |