
hyper
Colloquial for hyperactive; overly excited, energetic, or nervous.
Die Kinder waren vom vielen Zucker total hyper und rannten durch die ganze Wohnung.
The children were totally hyper from all the sugar and ran through the whole apartment.
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Colloquial for hyperactive; overly excited, energetic, or nervous.
Die Kinder waren vom vielen Zucker total hyper und rannten durch die ganze Wohnung.
The children were totally hyper from all the sugar and ran through the whole apartment.
'Hyper' is a colloquial shortening of the word 'hyperaktiv' (hyperactive). The prefix 'hyper-' comes from Greek and means 'over' or 'excessively'.
Ein hyperaktives Kind braucht viel Bewegung.
A hyperactive child needs a lot of movement.
This word is used almost exclusively in colloquial speech. In formal or written contexts, it is uncommon.
Nach drei Tassen Kaffee war ich total hyper und konnte nicht still sitzen.
After three cups of coffee, I was totally hyper and couldn't sit still.
'Hyper' is almost always used predicatively, meaning after a verb such as 'sein' (to be) or 'werden' (to become). Using it directly before a noun (attributively) is very rare and sounds unnatural.
Sei nicht so hyper, setz dich mal kurz hin!
Don't be so hyper; sit down for a moment!
crazy / turned off
Both words can describe an unusual person. „Hyper“ mainly emphasizes excessive energy, excitement, or nervousness, while „abgedreht“ points more to a bizarre and eccentric manner. When the focus is on behavior and the urge to move around, „hyper“ is more suitable; for strange originality, „abgedreht“ fits better.

Der hyperaktive Künstler lief bei der Eröffnung ständig durch den Saal.
The hyperactive artist kept running through the gallery during the opening.
Der abgedrehte Künstler trug bei der Eröffnung einen Mantel aus bunten Regenschirmen.
The eccentric artist wore a coat made of colorful umbrellas at the opening.