unbegrenzt
unlimited
Without a limit or an end; available in any amount, duration, or extent.
Mit diesem Mobilfunktarif hat man unbegrenztes Datenvolumen.
With this mobile phone plan, you have unlimited data volume.

unlimited
Loading your saved state.
unlimited
Without a limit or an end; available in any amount, duration, or extent.
Mit diesem Mobilfunktarif hat man unbegrenztes Datenvolumen.
With this mobile phone plan, you have unlimited data volume.

The word consists of the negation 'un-' and the word 'begrenzt' (limited), which comes from 'die Grenze' (the border/limit). So 'unbegrenzt' (unlimited) literally means 'without a limit'.
Die Anzahl der Versuche ist unbegrenzt.
The number of attempts is unlimited.
The word 'unbegrenzt' (unlimited) can also be used as an adverb to describe a verb. It then means 'without a time or quantity limit' and remains unchanged.
Sie können die Software unbegrenzt nutzen.
You can use the software without limits.
'Unbegrenzt' (unlimited) is often used to describe abstract concepts or resources. Typical combinations are 'unbegrenzte Möglichkeiten' (unlimited possibilities), 'unbegrenzte Freiheit' (unlimited freedom), or 'unbegrenzte Geduld' (unlimited patience).
Mit dieser Ausbildung stehen dir unbegrenzte Möglichkeiten offen.
With this training, unlimited opportunities are open to you.
finally / finite
'endlich' and 'unbegrenzt' are opposites when 'endlich' means that something is limited and has an end. 'unbegrenzt' means without a fixed limit, for example with time, quantity, or access. The words can be confusing because 'endlich' very often also means 'after a long wait'. In this case, 'unbegrenzt' is not the right opposite. When you are talking about a limit, you can contrast 'endlich' and 'unbegrenzt'. When you want to express relief, you need 'endlich' on its own.

Zu Hause haben wir unbegrenzten Zugang zum Internet.
At home, we have unlimited access to the internet.
Ist die Reparatur endlich fertig?
Is the repair finally finished?