kiewer
Kyiv
Relating to the Ukrainian capital Kyiv; originating from Kyiv. This adjective is not declined.
Die Kiewer Rus war ein mittelalterliches Großreich in Osteuropa.
Kyivan Rus was a medieval great empire in Eastern Europe.

Kyiv
Loading your saved state.
Kyiv
Relating to the Ukrainian capital Kyiv; originating from Kyiv. This adjective is not declined.
Die Kiewer Rus war ein mittelalterliches Großreich in Osteuropa.
Kyivan Rus was a medieval great empire in Eastern Europe.

Adjectives derived from a city name and ending in '-er' are not declined. The form 'Kiewer' (Kyiv/Kyivan) always stays the same, regardless of the noun's gender, case, or number.
Wir besuchten ein Kiewer Restaurant.
We visited a Kyiv restaurant.
Because 'Kiewer' (Kyiv/Kyivan) is derived from a proper noun (Kiew), it is always capitalized, even when used as an adjective.
Die Kiewer Metro ist für ihre schönen Stationen bekannt.
The Kyiv Metro is known for its beautiful stations.
This adjective is formed by adding the ending '-er' to the city name 'Kiew' (Kyiv). This pattern is very common in German, for example also in 'Hamburger Hafen' (Port of Hamburg) or 'Berliner Mauer' (Berlin Wall).
Die Kölner Domschatzkammer ist weltberühmt.
Cologne Cathedral's treasury is world-famous.
Ukrainian
'ukrainisch' and 'kiewer' both relate to Ukraine, but not to the same area. 'ukrainisch' refers to the whole country, the people, the language, or the culture. 'kiewer' refers only to the capital city Kyiv or to something that comes from Kyiv. The words can be confused because Kyiv is in Ukraine. Even so, not everything Ukrainian is automatically 'kiewer'. Also, 'kiewer' always stays the same and is not declined, for example 'ein kiewer Restaurant' (a Kyiv restaurant). If you mean the country or the language, use 'ukrainisch'; if you mean the city of Kyiv, use 'kiewer'.

Im Reisebericht beschreibt Anna mehrere kiewer Cafés und Plätze.
In the travel report, Anna describes several Kyiv cafés and squares.
Meine Nachbarin spricht Ukrainisch und hilft mir bei der Übersetzung.
My neighbor speaks Ukrainian and helps me with the translation.