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’
    • ‘I hit the door hard, unfastening my seat belt and reaching for the handle behind me.’
    • ‘He dropped his cap on a chair, unbuttoned his overcoat, lifting up his chin to unfasten the throat buttons.’
    • ‘He closed the door again and unfastened the chains, opening the door again, all the way this time.’
    • ‘Allsop unfastened the chain and threw the door open.’
    • ‘Jack unfastened the lock and shoved the door open, much to Vaun's horror.’
    • ‘It unfastened my uniform top and tugged it open.’
    • ‘She nodded and unfastened her seat belt as Wil came around to open the door for her.’
    • ‘Satisfied that I was safe for the time being I tried to unfasten the door again.’
    • ‘She shakily unfastened her seat belt and opened the car door.’
    • ‘I heard the door lock being unfastened and the door opened.’
    • ‘I slowly removed my earphones, secured my book, and unfastened my seatbelt.’
    • ‘I unfastened my belt buckle and unbuttoned my camouflage pants.’
    • ‘Walker sat up, unfastened his strap, and opened his door.’
    • ‘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.’
    • ‘Jenna unfastened the lock on her makeup case and flipped it open.’
    • ‘With a silent sigh to himself, he unfastened the helmet and removed it altogether.’
    • ‘Lincoln tapped her feet and rubbed a handful of nibbled fingernails up and down her jacket as if fastening and unfastening a zip.’
    • ‘Keeping his eyes on the open glade, he carefully unfastened the packsack and slipped out the revolver.’
    • ‘Steve could heard the sound of many, many locks being unfastened, then the door opened a crack.’
    • ‘Vincent ignored her, unfastening his seatbelt and opening his door.’
    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’
      • ‘Because the fabric's material fastens and unfastens so easily, Ray can move the bands any time they look like they need repositioning.’
      • ‘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.’

Pronunciation

unfasten

/ʌnˈfɑːs(ə)n/