unproblematisch
unproblematic
Causing no problems or difficulties; easy and straightforward.
Der Austausch des defekten Teils war völlig unproblematisch.
Replacing the defective part was completely unproblematic.

unproblematic
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unproblematic
Causing no problems or difficulties; easy and straightforward.
Der Austausch des defekten Teils war völlig unproblematisch.
Replacing the defective part was completely unproblematic.

The word consists of the prefix 'un-' and the adjective 'problematisch' (problematic). The prefix 'un-' negates the base word, so 'unproblematisch' (unproblematic) literally means 'not problematic'.
Die Anmeldung für den Kurs war überraschend unproblematisch.
Registration for the course was surprisingly unproblematic.
'Unproblematisch' (unproblematic) is very often used predicatively with verbs such as 'sein' (to be), 'verlaufen' (to proceed), or 'ablaufen' (to proceed/take place) to describe that a process or situation was easy and without difficulties.
Die gesamte Reise verlief unproblematisch.
The entire trip went smoothly.
This adjective often describes procedures, processes, or relationships. Typical combinations are 'ein unproblematischer Ablauf' (an unproblematic process), 'eine unproblematische Zusammenarbeit' (unproblematic cooperation), or 'eine unproblematische Lösung' (an unproblematic solution).
Wir hoffen auf eine unproblematische Zusammenarbeit mit dem neuen Partner.
We hope for unproblematic cooperation with the new partner.
simple / just
'einfach' and 'unproblematisch' are close in meaning when something does not cause major difficulties. 'einfach' mainly says that something is easy to understand or do. 'unproblematisch' says more strongly that no problems are to be expected. It is especially suitable for appointments, processes, people, or solutions. A task can be simple because it is easy. A change is unproblematic if it does not cause difficulties for anyone.

Im Büro ist der neue Termin unproblematisch, weil alle Zeit haben.
At the office, the new appointment time is unproblematic because everyone is available.
Die Übung im Park ist einfach, deshalb macht meine Nachbarin gern mit.
The exercise in the park is easy, so my neighbor enjoys joining in.