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to loosen up

to loosen up

8 3.0
To make muscles less tight and more ready for exercise by stretching
  • phrasal verb
  • /ˈluːsən ʌp/
  • Informal
translation icon : aflojarse
  • He spent a few minutes to loosen up his back and shoulders with simple stretches.
  • loosen up the muscles
  • loosen up your arms
  • stretching exercises to loosen up

Examples

  • Robert takes a couple of jumpers to loosen up, stretches out a bit doing a couple of toe touches and a few windmills with his arms, and then they go at it.

    Fiction book (1999)
  • She complained that her neck and shoulders were stiff, shrugging repeatedly, trying to loosen up the muscles.

    Fiction book (1998)
  • We need to loosen up our legs a little bit.

  • And it's incredible how much that loosens up my entire lower back and hips.

  • I thought, you know, a good hot swim would loosen up the muscles.

  • You have to loosen up your wrists.

  • You were much too tense." Jesse rolled his head around and shook his arms to loosen up.

    Fiction book (1994)
  • Before the race, it's important to loosen up your muscles with some gentle stretches.

  • The yoga instructor advised everyone to loosen up their bodies before beginning the workout.

Synonyms

to warm up
vsto loosen up
95 2.2

Do gentle exercises to prepare the body for harder activity

is about stretching specifically to increase limberness before strenuous activity
to loosen
vsto loosen up
88 1.0

Make something less tight so it can move or open

focuses specifically on bodily stretching before exercise rather than loosening general items
to relax
vsto loosen up
78 1.0

To make or become less tight

is narrower, meaning stretching to prepare for exercise rather than general tension loss
to stretch out
vsto loosen up
20 3.4

Move part of your body, for example your arm, to reach or see something

is about preparatory stretching for physical activity rather than reaching for comfort
to soften up
vsto loosen up
  • Informal
19 3.9

To make someone more willing to agree or make something easier to bend

is about bodily stretching for exercise preparation rather than changing attitudes or materials
to limber
vsto loosen up
4 4.8

To make the body or muscles bend and move easily by warming up

focuses on preparatory stretching for activity rather than long term flexibility work
to limber up
vsto loosen up
  • Informal
2 3.4

Prepare your body for exercise by stretching or doing light movements

is specifically about stretching to make the body ready before exercise
to slacken
vsto loosen up
1 5.5

Become or make less tight, like a rope

is specifically about active stretching to ready the body for strenuous movement
to unlimber
vsto loosen up
8.8

To move or stretch your muscles so they are ready to work

emphasizes preparing the whole body for exercise rather than only limb readiness
to restretch
vsto loosen up
3.5

Move your body or muscles again to make them feel less stiff

focuses on initial preparatory stretching rather than repeating stretches later
to relieve muscle tension
vsto loosen up
3.7

To make muscles feel less tight or stiff

is aimed at preparing body for activity by stretching, not only easing tightness
to unstrain
vsto loosen up
7.8

To make muscles or nerves feel less tight after stress

is targeted stretching to increase limberness before exercise rather than general relaxation

Antonyms

25 3.7

To make or become hard and less able to bend

How Flexible

to stretch
185 1.5
to limber up
  • Informal
2 3.4
to loosen up
  • Informal
8 3.0
to warm up
95 2.2
to ease
119 2.4

Surface Forms

loosen up infinitive
loosened up past participle
loosening up present participle
loosens up third person singular

Morphology

loosen + up

The meaning 'to make one's body more relaxed or limber' is directly derivable from combining 'loosen' (make less tight) with the particle 'up', which here conveys a completive/intensifying result. This verb+particle pattern is common and compositional in English, so a B1 learner who knows the constituents would readily infer the MWE's meaning.

Etymology

Loosen up comes from actually making tight muscles loose by stretching or moving them until they feel softer and can move more easily. That's why loosen up means 'to make your body more relaxed or limber before exercise'.