verb to release or undo a fastening or restraint
She carefully unfastened the clasp of her necklace before taking it off.
The workers had to unfasten the scaffolding before moving it to the next location.
The sailor had to unfasten the ropes to release the sails.
The mechanic needed to unfasten the bolts in order to access the engine.
During the pre-flight checks, the technician had to unfasten the panels to inspect the wiring.
In a novel, the author described how the protagonist unfastened her seatbelt before exiting the car.
During therapy sessions, the psychologist may encourage the patient to metaphorically unfasten their emotional barriers in order to explore their feelings more deeply.
The mechanic unfastened the bolts holding the engine cover in place before beginning repairs.
The fashion designer decided to unfasten the buttons on the dress to create a more casual and relaxed look.
Before takeoff, the pilot must ensure that all passengers have unfastened their seatbelts and are ready for departure.