Skip to main content
flex

flex

34 5.3
A quick tightening of a muscle to show strength
  • noun
  • /flɛks/
translation icon : flexión
  • And I think that's the real flex that you get when you build that muscle.

And I think that's the real flex that you get when you build that muscle.

Examples

  • As she spoke, she watched the muscles in his forearm flex when he shifted gears.

    Fiction book (1992)
  • During the competition, the athlete's flex impressed the judges and the crowd.

  • He showed off a powerful flex of his biceps after lifting the heavy weights.

  • With a quick flex of her arms, she demonstrated her strength to the spectators.

Synonyms

flexion
vsflex
  • Specialized
3 7.7

The bending of a joint or the position when it is bent

focuses on tensing muscles to show strength rather than only limb position
muscle contraction
vsflex
  • Specialized
3 3.4

A muscle that becomes shorter or tighter and causes movement and tension

is about deliberate muscle tensing to show strength rather than a physiological process
muscular contraction
vsflex
  • Specialized
1 3.5

A short tightening of a muscle that makes it shorten or stiffen

focuses on voluntary tensing to display strength rather than automatic process
flexure
vsflex
  • Specialized
8.7

A bending of a joint such as the knee

highlights muscle tightening to display strength, not just bending

Antonyms

relaxation
  • Specialized
2 3.6

A muscle becomes less tight and returns to a resting state

Idioms

8 6.8

To show power to frighten or control others

Compounds

flex harrow
  • Specialized
8.6

A farm tool with spring teeth on a flexible frame that removes weeds from fields

How Tense

tension
70 3.2
to cramp
21 3.2
flex
34 5.3
contraction
  • Specialized
80 4.4
muscle tone
  • Specialized
8 3.4
relaxation
  • Specialized
2 3.6

Surface Forms

flex singular
flexes plural

Etymology

Flex (the act) comes from the same root flectere 'to bend' and the verb meaning to tighten a muscle to show strength. So a flex is a short act of bending or tensing a muscle, often done to show strength or to show off.