
kurzzeitig
brief / temporary
Lasting only for a short time; of short duration.
Nach dem Stromausfall war das Internet nur kurzzeitig unterbrochen.
After the power outage, the internet was interrupted only briefly.
brief / temporary
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brief / temporary
Lasting only for a short time; of short duration.
Nach dem Stromausfall war das Internet nur kurzzeitig unterbrochen.
After the power outage, the internet was interrupted only briefly.
The word is a compound of 'kurz' (short) and 'Zeit' (time) with the adjective ending '-ig'. So it literally means 'of short time'.
Es gab eine kurzzeitige Störung im System.
There was a brief disruption in the system.
'Kurzzeitig' (brief/temporary) can stand as an adjective before a noun or as an adverb describing a verb. As an adverb, the form remains unchanged.
Der Laden war wegen einer kurzzeitigen Renovierung geschlossen.
The shop was closed because of a brief renovation.
'Kurzzeitig' (brief/temporary) is often used to describe unexpected or temporary events. Typical nouns are 'Unterbrechung' (interruption), 'Störung' (disruption), 'Ausfall' (outage/failure), or 'Besserung' (improvement).
Nach dem kurzzeitigen Stromausfall funktionierten alle Geräte wieder.
After the brief power outage, all devices worked again.
short-term / at short notice
Both words can refer to something that concerns only a short period. Kurzfristig (at short notice) emphasizes the short time until something begins or the little lead time, while kurzzeitig (brief) describes the short duration itself. Use kurzfristig for planning and announcements, and kurzzeitig for the duration of a measure.

Die Schließung der Straße dauerte wegen der Bauarbeiten nur kurzzeitig.
The road closure lasted only briefly because of the construction work.
Die Schließung der Straße wurde wegen der Bauarbeiten kurzfristig angekündigt.
The road closure was announced at short notice because of the construction work.