1. assembled incorrectly or improperly; put together in the wrong way
Usage: often used in technical or manufacturing contexts

Examples

• The furniture arrived misassembled, with several pieces attached backward.
• The technician discovered the circuit board was misassembled during quality control.
• A misassembled engine can cause serious performance problems.
• The instruction manual was unclear, resulting in a misassembled bookshelf.
• We had to disassemble and reassemble the entire unit because it was misassembled.
• The misassembled device failed to function properly when we first tested it.