1. removing thread from a needle, sewing machine, or similar device
Usage: present participle of unthread
2. taking apart something that has been threaded together
Usage: present participle of unthread

1. the act or process of removing thread or taking apart threaded items
Usage: gerund form

Examples

• She was unthreading the sewing machine to change the bobbin.
• The tailor spent time unthreading the old embroidery from the fabric.
• Unthreading the beads took longer than expected.
• He began unthreading the fishing line from the reel.
• The unthreading of the complex pattern required patience.
• After unthreading the needle, she put away her sewing supplies.
• The careful unthreading preserved the delicate silk thread.