1. superlative form of faulty; having the most faults, defects, or imperfections
Usage: superlative form

Examples

• Of all the machines tested, this one proved to be the faultiest.
• The faultiest reasoning in his argument was the assumption that correlation implies causation.
• She identified the faultiest section of the bridge during the inspection.
• Among the three proposals, his was the faultiest in terms of budget planning.
• The faultiest wiring in the building was found in the basement.
• This is the faultiest logic I’ve ever encountered in a research paper.