1. to unfasten or remove the truss or support from something
Usage: technical
2. to remove tight-fitting clothing or garments
Usage: archaic

Examples

• The carpenter untrusses the roof beams for inspection.
• Workers untruss the bridge supports during maintenance.
• The actor untrusses his costume between scenes.
• She untrusses her corset after the long day.
• The crew untrusses the stage rigging after the performance.