| unbrechbar | uncrackable |
| unbrauchbar | bogus unusable |
| unbrennbar | incombustible |
| unberechenbar | unpredictable incalculable |
| unbeugbar | indeclinable |
| ansprechbar | addressable responsive |
| unlöschbar | inextinguishable |
| unerreichbar | inaccessible |
| unabsehbar | incommensurable unforeseeable |
| unfruchtbar | infertile |
| untrennbar | inseparable |
| unbewegbar | inanimate |
| unbezahlbar | priceless |
| unbezähmbar | indomitable |
| unbehaart | bald hairless |
| unbeirrbar | undeviating |
| unbeweisbar | unprovable |
| unbewohnbar | uninhabitable |
| Einbrecher | burglar housebreaker picklock |
| anbrechen | begin start break |