dufte
great
A colloquial, somewhat old-fashioned expression for 'großartig' (great), 'toll' (terrific), or 'cool' (cool).
Das war ein dufte Abend, das müssen wir wiederholen!
That was a great evening; we have to do it again!

great
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great
A colloquial, somewhat old-fashioned expression for 'großartig' (great), 'toll' (terrific), or 'cool' (cool).
Das war ein dufte Abend, das müssen wir wiederholen!
That was a great evening; we have to do it again!

'Dufte' is a colloquial word that is considered somewhat old-fashioned today. It is mainly used in informal conversations, and you are more likely to hear it from older speakers.
Mein Opa findet die neue Musik immer noch „dufte“.
My grandpa still thinks the new music is 'dufte' (great).
The adjective 'dufte' comes from 'der Duft' (scent). What originally meant 'good-smelling' became, in colloquial speech, a general positive evaluation like 'toll' (terrific) or 'großartig' (great).
„Ein dufter Kerl!“, sagte sie anerkennend.
'A great guy!' she said appreciatively.
'Dufte' is usually used on its own as a response or predicatively after verbs like 'sein' (to be) or 'finden' (to find/consider). You can also put it before a noun, but that is less common.
Wir gehen ins Kino. – Dufte!
We're going to the movies. – Great!
super
'super' and 'dufte' both express that something is very good or great. 'super' is very normal today and fits many everyday situations, for example for plans, results, or news. 'dufte' has a similar meaning, but sounds much more colloquial and somewhat old-fashioned or joking. If you want to sound modern and neutral, 'super' is usually more natural. 'dufte' is more suitable when you deliberately want to sound casual, nostalgic, or funny.

Die Idee mit dem Picknick im Park finde ich richtig dufte.
I think the idea of a picnic in the park is really great.
Am Morgen ist es super, wenn ihr den Termin für die Familie schon geplant habt.
In the morning, it is super if you have already planned the appointment for the family.