| unmöglich | impossible ridiculous inconceivable |
| Unmöglichkeit | impossibility |
| möglich | possible on the cards potential |
| womöglich | possibly |
| unsäglich | unspeakable |
| unhöflich | impolite discourteous |
| unmodisch | dated |
| unmodish | out of date |
| unmoralisch | immoral |
| anzüglich | insinuating lewd salacious |
| untauglich | unfit unsuited |
| unförmlich | informal |
| unredlich | bum dishonest |
| unähnlich | unlike |
| unehelich | bastard illegitimate spurious |
| unehrlich | dishonest crooked dodgy reserved unfrank withdrawn |
| unendlich | infinite |
| unüblich | unusual |
| ungleich | unlike unequal |
| Unmensch | animal beast |