Declension of the word "Riesendummheit"

Singular and plural for Riesendummheit, f, female declension     translation to English real boo-boo

Singular
Plural
Singular
Nominativ (Wer? Was?)
die Riesendummheit
die Riesendummheiten
Genitiv (Wessen?)
der Riesendummheit
der Riesendummheiten
Dativ (Wem?)
der Riesendummheit
den Riesendummheiten
Akkusativ (Wen? Was?)
die Riesendummheit
die Riesendummheiten
Plural
die Riesendummheiten
der Riesendummheiten
den Riesendummheiten
die Riesendummheiten
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