| unzweifelhaft | indubitable |
| zweifelhaft | doubtful dubious |
| anzweifeln | doubt question |
| zwergenhaft | dwarf |
| Geiselhaft | captivity as a hostage detention as a hostage hostagity |
| nebelhaft | foggy |
| unzweideutig | unequivocal unambiguous |
| Bezweifeln | dubitation |
| bezweifeln | doubt |
| Zweifeln | dubitation |
| zweifeln | doubt |
| zweifelnd | doubtful |
| Zweifel | doubt |
| Zweifelsfall | case of doubt |
| verzweifelt | desperate despairing frantic |
| zweifellos | undoubtedly no doubt doubtless doubtlessly certainly indubitable |
| beispielhaft | exemplary |
| engelhaft | angelic |
| flegelhaft | scurrilous |
| onkelhaft | avuncular |