English dictionary

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English verb: unfasten

1. unfasten (contact) cause to become undone

SamplesUnfasten your belt.

Pattern of useSomebody ----s something.
Something ----s something

Broader (hypernym)undo

Narrower (hyponym)unbend, unchain, unzip


Antonymsfasten, fix, secure

2. unfasten (contact) become undone or untied

SamplesThe shoelaces unfastened.

Pattern of useSomething ----s

Broader (hypernym)open, open up


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