unbestreitbar
indisputable
So clear and obvious that it cannot be disputed or doubted; unquestionable.
Es ist eine unbestreitbare Tatsache, dass der Klimawandel menschengemacht ist.
It is an indisputable fact that climate change is caused by humans.

indisputable
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indisputable
So clear and obvious that it cannot be disputed or doubted; unquestionable.
Es ist eine unbestreitbare Tatsache, dass der Klimawandel menschengemacht ist.
It is an indisputable fact that climate change is caused by humans.

The word consists of three parts: the prefix 'un-', the verb 'bestreiten' (to dispute/deny), and the ending '-bar' (-able). The ending '-bar' means that something can be done. So 'unbestreitbar' literally means that something 'cannot be disputed.'
Seine Kompetenz in diesem Bereich ist unbestreitbar.
His competence in this field is indisputable.
When 'unbestreitbar' (indisputably) stands at the beginning of a sentence as an adverb to emphasize a statement, the conjugated verb follows directly after it. This word order gives the statement special weight.
Unbestreitbar hat sich die Situation in den letzten Jahren verbessert.
Indisputably, the situation has improved in recent years.
'Unbestreitbar' (indisputable) is often combined with nouns that express facts or evaluations. Common combinations are 'eine unbestreitbare Tatsache' (an indisputable fact), 'ein unbestreitbarer Beweis' (indisputable proof), or 'ein unbestreitbarer Vorteil' (an indisputable advantage).
Dass er die Wahrheit sagt, ist eine unbestreitbare Tatsache.
That he is telling the truth is an indisputable fact.
obvious / apparently
'offensichtlich' and 'unbestreitbar' both express that something is very clear. 'offensichtlich' means that something is easy to recognize. 'unbestreitbar' goes one step further: it says that one can hardly doubt it or argue against it. 'offensichtlich' fits well for everyday observations. 'unbestreitbar' sounds stronger and fits especially well when talking about facts, achievements, or clear results.

Im Kurs ist unbestreitbar, dass Lena seit Wochen große Fortschritte macht.
In the course, it is indisputable that Lena has been making great progress for weeks.
Omar ist heute beim Training offensichtlich nicht ganz fit.
Omar is obviously not quite fit at training today.