
unerreichbar
inaccessible
Not reachable spatially or physically; inaccessible.
Nach dem Erdrutsch war das Dorf für mehrere Tage völlig unerreichbar.
After the landslide, the village was completely inaccessible for several days.
unreachable
Loading your saved state.

inaccessible
Not reachable spatially or physically; inaccessible.
Nach dem Erdrutsch war das Dorf für mehrere Tage völlig unerreichbar.
After the landslide, the village was completely inaccessible for several days.

unreachable
Not contactable, especially by telephone or other means of communication.
Ich versuche seit einer Stunde, sie anzurufen, aber sie ist einfach unerreichbar.
I've been trying to call her for an hour, but she is simply unreachable.

unattainable
At such a high level that it cannot be reached; refers to goals, standards, or achievements.
Der Weltrekord in dieser Disziplin schien für alle anderen Athleten unerreichbar.
The world record in this discipline seemed unattainable for all the other athletes.
The word is made up of the prefix 'un-' and 'erreichbar' (reachable). 'Erreichbar' comes from the verb 'erreichen' (to reach). 'Unerreichbar' therefore literally means 'not reachable', which can refer to places, people, or goals.
Der Gipfel des Berges ist bei diesem Wetter unerreichbar.
The mountain peak is unreachable in this weather.
The context makes the meaning clear: with places, it is about physical accessibility. With people, it is about contact by phone or email. With goals, dreams, or records, it is about achievability.
Das entlegene Bergdorf ist im Winter oft unerreichbar. (Ort)
The remote mountain village is often inaccessible in winter. (place)
'Unerreichbar' is very often used with the preposition 'für' (for) and an accusative object to specify for whom or what something is not reachable.
Diese hohe Qualität ist für die Konkurrenz unerreichbar.
This high level of quality is unattainable for the competition.