mangelhaft
- defective
- being of an academic grade not allowing to pass due to containing deficiencies evidencing uselessness on the whole, E
- Positive
- mangelhaft
- Comparative
- mangelhafter
- Superlative
- am mangelhaftesten
Der war mangelhaft!
Defective shot!
Das Produkt ist mangelhaft.
Their product is defective.
Ihre Quellen sind mangelhaft.
Your intelligence is a little flawed.