
überschüssig
excess
Present in a larger amount than is needed or used. It describes a surplus or remainder.
Die überschüssige Energie wird in großen Batterien gespeichert.
The excess energy is stored in large batteries.
excess
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excess
Present in a larger amount than is needed or used. It describes a surplus or remainder.
Die überschüssige Energie wird in großen Batterien gespeichert.
The excess energy is stored in large batteries.
'Überschüssig' (excess) is the adjective corresponding to the noun 'der Überschuss' (surplus/excess). Both words describe an amount that is greater than what is needed.
Der finanzielle Überschuss wird in neue Projekte investiert.
The financial surplus is invested in new projects.
The adjective is often used in economic, technical, or nutrition-related contexts. Typical combinations are: überschüssige Energie (excess energy), überschüssige Waren (excess goods), or überschüssige Kalorien (excess calories).
Die Firma verkauft die überschüssigen Produkte zu einem reduzierten Preis.
The company sells the excess products at a reduced price.
The word does not simply describe a large amount, but specifically the amount that remains after a need has been met. It refers to the remainder that was not used.
Nachdem alle Rechnungen bezahlt waren, wurde das überschüssige Geld gespart.
After all the bills had been paid, the excess money was saved.
unnecessary / superfluous
Überflüssig and überschüssig can both be used for something that is present in addition to what is needed. Überflüssig assesses it as unnecessary, while überschüssig specifically describes an amount beyond what is needed or used. For a simple statement about quantity, überschüssig is therefore more suitable.

Nach dem Abmessen bleibt noch überschüssiges Öl in der Flasche.
After measuring it out, some excess oil remains in the bottle.
Das zweite Glas Öl ist für dieses Rezept überflüssig.
The second glass of oil is unnecessary for this recipe.