Verb:

देर करना, सुस्त करना, धीमा करना, विलंब करना,

unfasten's Usage Examples:

To unfasten the hall door was utterly beyond my strength; now an obvious method of escape presented itself.

She unbuckled her girdle from around her waist and began to hastily unfasten the stones.

unfasten the hall door was utterly beyond my strength; now an obvious method of escape presented itself.

Once your ship is down on the dock, unfasten the belt, get up, and go Starboard into the storage room.

unfasten the belt, get up, and go Starboard into the storage room.

She began to unfasten her long braids.

Synonyms:

unbend, unzip, undo, unchain,

Antonyms:

belt, clip, zip up, fasten, chain,