This is the 12114th most frequent German word.
underweight
The German word for "underweight" is "Untergewicht," meaning having less body weight than is considered healthy.
Here, 'untergewichtig' describes a physical state of having insufficient body weight, used as an adjective.
Er ist untergewichtig, weil er nicht genug isst.
He is underweight because he does not eat enough.
In this sentence, 'untergewichtigen' describes objects (packages) as having less weight than expected, used descriptively.
Die untergewichtigen Pakete müssen erneut gewogen werden.
The underweight packages must be reweighed.
Here, 'untergewichtig' expresses a conditional context where the insufficient weight of an item is considered.