noun Wolf·gang A·ma·de·us [woo lf-gang am-uh-dey-uh s; German vawlf-gahng ah-mah-dey-oo s] /ˈwʊlf gæŋ ˌæm əˈdeɪ əs; German ˈvɔlf gɑŋ ˌɑ mɑˈdeɪ ʊs/, 1756–91, Austrian composer.