
unumstößlich
irrefutable
So certain and clear that it cannot be disproved or disputed.
Die Beweise für seine Schuld waren unumstößlich.
The evidence of his guilt was irrefutable.
irrefutable / irrevocable
unumstößlich – unumstößlicher – am unumstößlichsten
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irrefutable
So certain and clear that it cannot be disproved or disputed.
Die Beweise für seine Schuld waren unumstößlich.
The evidence of his guilt was irrefutable.

irrevocable
So firmly established that it can no longer be changed or reversed.
Der Vorstand fasste einen unumstößlichen Beschluss.
The board made an irrevocable decision.
| basic form | unumstößlich |
|---|---|
| comparative | unumstößlicher |
| superlative | am unumstößlichsten |
| masc. | fem. | neut. | plural | |
|---|---|---|---|---|
| nom. | -e | -e | -e | -en |
| acc. | -en | -e | -e | -en |
| dat. | -en | -en | -en | -en |
| gen. | -en | -en | -en | -en |
Add the ending to unumstößlich.
| masc. | fem. | neut. | plural | |
|---|---|---|---|---|
| nom. | -er | -e | -es | -en |
| acc. | -en | -e | -es | -en |
| dat. | -en | -en | -en | -en |
| gen. | -en | -en | -en | -en |
Add the ending to unumstößlich.
| masc. | fem. | neut. | plural | |
|---|---|---|---|---|
| nom. | -er | -e | -es | -e |
| acc. | -en | -e | -es | -e |
| dat. | -em | -er | -em | -en |
| gen. | -en | -er | -en | -er |
Add the ending to unumstößlich.
'Unumstößlich' (irrefutable / irrevocable) combines the negative prefix 'un-' with the stem of 'umstoßen' (to knock over / overturn) and the suffix '-lich'. The image is of something that cannot be knocked over and therefore cannot be disproved or overturned.
Die neuen Messungen machten das Ergebnis unumstößlich.
The new measurements made the result irrefutable.
In the sense of 'nicht widerlegbar' (irrefutable), 'unumstößlich' frequently occurs with 'Beweise' (evidence), 'Tatsachen' (facts), 'Argumente' (arguments), or 'Erkenntnisse' (findings). The phrase 'unumstößlich feststehen' (to be established beyond doubt) is also common.
Für seine Behauptung konnte sie unumstößliche Beweise vorlegen.
She was able to present irrefutable evidence for his claim.
With decisions, rules, or agreements, 'unumstößlich' (irrevocable) indicates that a provision is intended to remain unchanged and cannot be withdrawn. In this context, the word describes the binding nature of a decision.
Die Teilnahmebedingungen sind unumstößlich und können nachträglich nicht mehr geändert werden.
The conditions of participation are irrevocable and cannot be changed afterward.