jugoslawisch
Yugoslav
Relating to the former country of Yugoslavia, its population, or its culture.
Das Restaurant ist für seine authentische jugoslawische Küche bekannt.
The restaurant is known for its authentic Yugoslav cuisine.

Yugoslav
Loading your saved state.
Yugoslav
Relating to the former country of Yugoslavia, its population, or its culture.
Das Restaurant ist für seine authentische jugoslawische Küche bekannt.
The restaurant is known for its authentic Yugoslav cuisine.

This adjective refers to the former state of Yugoslavia, which existed until the early 1990s. Today it is used to talk about things, people, or culture from this specific historical period.
Meine Großeltern kamen in den 70er Jahren als jugoslawische Gastarbeiter nach Deutschland.
My grandparents came to Germany in the 1970s as Yugoslav guest workers.
Unlike in English, adjectives derived from country names are written in lowercase in German, unless they are at the beginning of a sentence. So you write 'der jugoslawische Film' (the Yugoslav film), not 'der Jugoslawische Film'.
Wir haben gestern einen alten jugoslawischen Film gesehen.
We watched an old Yugoslav film yesterday.
The adjective is often used in certain fixed contexts, for example 'die jugoslawische Küche' (Yugoslav cuisine), 'die ehemalige jugoslawische Republik' (the former Yugoslav republic), or in historical discussions about 'den jugoslawischen Bürgerkrieg' (the Yugoslav civil war).
Er sammelt alte jugoslawische Münzen aus der Zeit vor 1990.
He collects old Yugoslav coins from the period before 1990.
Serbian
'serbisch' and 'jugoslawisch' can both have to do with history, culture, and people from the same region. But they do not mean the same thing. 'serbisch' refers to Serbia, its population, culture, or language. 'jugoslawisch' refers to the former country of Yugoslavia, which no longer exists today. The words can be confusing because Serbia used to be part of Yugoslavia. For present-day language or origin, 'serbisch' is often more precise; for older history or things from the time of Yugoslavia, 'jugoslawisch' fits.

Im Museum sieht Tom alte jugoslawische Plakate aus den siebziger Jahren.
In the museum, Tom sees old Yugoslav posters from the seventies.
Auf dem Formular gibt Anna an, dass ihre Muttersprache serbisch ist.
On the form, Anna states that her native language is Serbian.