defectuoso
/defeɡˈtwoso/ · B2 · adj
defective (having one or more defects), faulty, flawed
🔧❌ defectuoso = defect + -uoso (full of); full of defects
Spanish defecto means defect, and the suffix -uoso means full of or characterized by, like in virtuoso. So defectuoso is literally full of defects. The English cognate defect makes it easy to recall.