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to unfasten

to unfasten

5 3.4
To open something by undoing a button or zipper
  • verb
  • /ʌnˈfæsn/
translation icon : desabrochar
  • I finally unfastened my seatbelt and I grabbed Sophia.
  • unfastened my belt
  • unfastened her straps
  • unfastened the buttons

Examples

  • "Where are you headed?" Hammond asked, unfastening the leg and bending to stow it under the seat.

    Fiction book (1994)
  • With bare hands, she unfastened her helmet catches and tipped it back.

    Fiction book (1996)
  • I have unfastened the window latch... and we will return tonight after the club has closed.

  • Clear reaches the tree and begins unfastening the dog's collar from the chain.

    Fiction book (2000)
  • Della became aware of the heat in her face and turned her attention to unfastening her coat buttons.

    Fiction book (1997)
  • With thick, clumsy fingers, I unfastened the buttons of my shirt and unzipped my jeans.

    Fiction book (1990)
  • "Sarcasm does not make you more attractive, Allison." Charlotte Elizabeth bent down and unfastened the leash from Miss Sylvie's collar.

    Fiction book (2001)
  • Della became aware of the heat in her face and turned her attention to unfastening her coat buttons.

  • I finally unfastened my seatbelt and I grabbed Sophia.

  • Clear reaches the tree and begins unfastening the dog's collar from the chain.

Synonyms

to untie
vsto unfasten
91 1.0

Make a knot or lace loose by undoing it

is used for releasing any fastening or closure not limited to knots
to unhook
vsto unfasten
35 2.5

To take something off where it hangs, like a coat or necklace

is used for general opening by releasing any fastening or closure not only hooks
to undo
vsto unfasten
21 1.3

Unfasten something that is tied or fastened

is focused on releasing a fastening or closure rather than unwrapping
to unscrew
vsto unfasten
20 3.0

Turn something so a lid or other fastened part comes off

applies to any fastening or closure not restricted to screwed parts
to unseal
vsto unfasten
20 4.3

To open something by breaking or removing a seal

is about releasing closures generally rather than specifically breaking seals
to unbuckle
vsto unfasten
11 3.2

Undo the part that holds a belt or strap closed

is about opening closures in general not only buckles
to unlatch
vsto unfasten
7 3.2

Open something by lifting or releasing a small catch that holds it closed

is the general action of releasing fastenings not only operating latches
to unchain
vsto unfasten
6 4.1

Remove chains and other things that hold someone so they are free

is typically used for general fastening release not only for chains or heavy restraints
to unhitch
vsto unfasten
4 5.7

To take off something that is attached to another thing, like a trailer or bicycle

applies to opening by releasing a fastening or closure not only detaching from hooks
to unstrap
vsto unfasten
4 3.9

To take off a belt or band that holds something in place

applies to releasing any fastening or closure not limited to straps
to unbind
vsto unfasten
3 6.4

To free something by untying ropes or cords

applies specifically to releasing a fastening or closure not general bindings
to unclasp
vsto unfasten
3 5.6

To open something held closed by a small metal catch or let go of something you were holding

is the general action of opening closures not limited to clasped fastenings
to unlace
vsto unfasten
3 3.8

To untie strings that close shoes or clothing

is the broader act of opening fastenings not only via laces
to unsnap
vsto unfasten
1 4.2

Open something that closes with a small button, like a purse or jacket

is broader and applies to releasing any fastening or closure not only snaps
to unpin
vsto unfasten
1 4.1

To take a pin out so something is no longer attached

focuses on releasing pins specifically rather than any fastening or closure type
to unattach
vsto unfasten
1 6.1

To separate something from what it is connected to

focuses on separating a connection rather than releasing a fastening or closure
to untether
vsto unfasten
1 6.6

To release something that is tied or fastened so it can move away

emphasizes freeing from a tie or connection rather than opening closures
to unloose
vsto unfasten
  • Archaic
1 7.0

To make something less tight or set something free

usually means fully open a fastening or closure rather than just reduce tightness
to unhook the latch
vsto unfasten
1 5.0

To open a gate or window by taking off the small catch that holds it closed

is broader applying to releasing any fastening or closure not just latches
to unknot
vsto unfasten
1 5.1

To make a tied rope or string loose so it comes apart

is broader applying to fastenings and closures beyond just knots
to unclamp
vsto unfasten
  • Specialized
1 5.1

To loosen or remove a clamp that holds something

is the broader act of releasing a fastening not limited to clamps
to unloose (a) knot
vsto unfasten
  • Archaic
5.9

To untie a knot so it comes apart

is about releasing any fastening or closure rather than only loosening knots
to unloosen
vsto unfasten
  • Archaic
7.2

To make something less tight or free it from something holding it

focuses on opening or releasing closures rather than merely reducing tightness
to unlash
vsto unfasten
7.4

Untie rope or straps that hold something in place

is broader applying to any fastening or closure not only lashings
to unclick
vsto unfasten
6.6

To release a catch or latch, for example a seatbelt

is not limited to click mechanisms and covers any fastening or closure release
to untack
vsto unfasten
8.4

To pull small nails or pins out of something

is about opening or releasing closures in general not only removing tacks
to unrein
vsto unfasten
9.9

To take the reins or other ties off something so it can move

is the general act of releasing fastenings or closures not limited to reins
to unbend
vsto unfasten
  • Specialized
9.9

Remove a sail from a pole or rope that holds it

is broader applying to many fastening types not only nautical sail attachments

Antonyms

68 1.6

Hold something in place so it cannot move

How Open

to open wide
13 1.9
to open
1.0
to unfasten
5 3.4
to loosen
88 1.0

Surface Forms

unfasten infinitive
unfastened past
unfastened past participle
unfastening present participle
unfastens third person singular

Morphology

unfasten = fasten (transparent) = un + fasten

The negative prefix 'un-' is productively attached to the verb 'fasten' to mean 'reverse the fastening', which is directly inferable.

Etymology

The word unfasten is made of un- meaning 'not' or 'reverse' and fasten meaning 'to make firm', like the fast in 'hold fast'. So, to unfasten is to undo or open something that was held tight.