Definition of unfasten in English:

unfasten

verb

[with object]
  • 1Open the fastening of; undo (something)

    ‘Allie stands before the mirror unfastening her earrings’
    ‘he had left the door unfastened’
    • ‘It unfastened my uniform top and tugged it open.’
    • ‘Jenna unfastened the lock on her makeup case and flipped it open.’
    • ‘He closed the door again and unfastened the chains, opening the door again, all the way this time.’
    • ‘Without a word he reached to his side and untied another tarp bag, unfastening it but leaving it unopened on the desk in front of him.’
    • ‘Allsop unfastened the chain and threw the door open.’
    • ‘With a silent sigh to himself, he unfastened the helmet and removed it altogether.’
    • ‘Vincent ignored her, unfastening his seatbelt and opening his door.’
    • ‘I slowly removed my earphones, secured my book, and unfastened my seatbelt.’
    • ‘She shakily unfastened her seat belt and opened the car door.’
    • ‘I hit the door hard, unfastening my seat belt and reaching for the handle behind me.’
    • ‘I unfastened my belt buckle and unbuttoned my camouflage pants.’
    • ‘Walker sat up, unfastened his strap, and opened his door.’
    • ‘Keeping his eyes on the open glade, he carefully unfastened the packsack and slipped out the revolver.’
    • ‘I heard the door lock being unfastened and the door opened.’
    • ‘She nodded and unfastened her seat belt as Wil came around to open the door for her.’
    • ‘He dropped his cap on a chair, unbuttoned his overcoat, lifting up his chin to unfasten the throat buttons.’
    • ‘Satisfied that I was safe for the time being I tried to unfasten the door again.’
    • ‘Jack unfastened the lock and shoved the door open, much to Vaun's horror.’
    • ‘Lincoln tapped her feet and rubbed a handful of nibbled fingernails up and down her jacket as if fastening and unfastening a zip.’
    • ‘Steve could heard the sound of many, many locks being unfastened, then the door opened a crack.’
    undo, open, detach, disconnect, remove, untie, unbutton, unzip, loose, loosen, free, separate, disengage, disjoin, uncouple, unwrap, unbind, unhook, unlace, unhitch, untether, unlock, unbolt
    View synonyms
    1. 1.1no object Become loose or undone.
      ‘the dress unfastened easily’
      • ‘The band unfastened with a snap and a pop, then blood flowed back into her arm.’
      • ‘If the patch unfastens, it becomes a loose body in the knee and requires surgical removal.’
      • ‘Because the fabric's material fastens and unfastens so easily, Ray can move the bands any time they look like they need repositioning.’

Pronunciation

unfasten

/ʌnˈfɑːs(ə)n/