Skip to main content
to bristle up

to bristle up

7.9
Show sudden anger, often by becoming tense in the face or voice
  • phrasal verb
translation icon : erizarse
  • The mongoose's hair bristled up, and it grinned to show its teeth, appearing dangerous, but I knew it was just madly scared.

Examples

  • When the manager critiqued his work harshly, he could feel himself bristle up with anger.

  • She bristled up at the suggestion that she wasn't qualified for the position.

  • The audience began to bristle up when the speaker made offensive remarks.

Synonyms

to scowl
vsto bristle up
33 4.1

To give an angry look to show you do not like something

is more sudden and visibly tense rather than just an angry frown
to bristle
vsto bristle up
19 7.0

To react with sudden anger or offense

is identical but emphasizes a rapid, visible display of anger
to bristle at
vsto bristle up
8 7.4

Show sudden anger or annoyance because of something someone says

is the same but often used with a phrase showing cause
to bridle at
vsto bristle up
1 8.4

To feel offended when someone says or does something you dislike

is similar but highlights immediate visible reaction rather than slow resentment
to bridle
vsto bristle up
1 9.0

To show sudden anger or feel offended, often by becoming stiff

is similar but stresses visible suddenness rather than general displeasure
to bridle up
vsto bristle up
  • Informal
9.1

To react angrily and show offended pride when criticized

is the same but emphasizes a sudden, visible reaction
to bare one's teeth
vsto bristle up
  • Informal
7.2

Show your teeth to look angry and warn someone

is about sudden indignation rather than open aggressive threat
to get one's monkey up
vsto bristle up
  • Informal
9.9

To become angry or upset

is more immediate visible anger rather than a general upset
to get up the wall
vsto bristle up
  • UK
9.9

To become very annoyed or frustrated by something small and repeated

is typically sudden and visible anger rather than prolonged annoyance

Antonyms

to calm down
  • Informal
594 1.4

To become less angry, excited, or upset

33 4.7

To calm yourself after strong feelings

How Angry

to explode
187 3.5
to snap
151 4.0
to bristle up
7.9
to glare
49 3.2

Surface Forms

bristle up infinitive
bristled up past participle
bristling up present participle
bristles up third person singular

Morphology

bristle + up

The verb 'bristle' already denotes showing sudden anger or offense, and the particle 'up' commonly signals an increase or inchoative change, so 'bristle up' meaning 'to become/show anger suddenly' is directly predictable from the parts. This verb+up compositional pattern is common in English (and mirrored cross-linguistically), so a B1 learner who knows both constituents would likely infer the meaning.

Etymology

The phrase bristle up comes from the image of short, stiff hairs called bristles standing up on an angry or scared animal. When a person suddenly acts like those raised bristles, looking hard, prickly and defensive, they 'show anger' or 'take offence', so bristle up means 'to show anger or take offence'.