| unfruchtbar | infertile |
| Unfruchtbarkeit | infertility |
| fruchtbar | fertile fruitful |
| unbrauchbar | bogus unusable |
| aufrichtbar | erectile |
| anfechtbar | contestable disputable |
| unsichtbar | invisible |
| unbrechbar | uncrackable |
| unfehlbar | infallible unfailing unerring |
| Früchtler | fruitarian |
| ruchbar | known notorious |
| betrachtbar | viewable |
| unanfechtbar | incontestable |
| unvernichtbar | indestructible |
| Nachtbar | nightclub |
| furchtbar | terrible |
| unverzichtbar | indispensable |
| unzumutbar | unreasonable |
| unlöschbar | inextinguishable |
| unfaßbar | abstruse |
| unfassbar | inconceivable incomprehensible unfathomable incredible unbelievable |