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Glite Dictionary
to lose one's head

to lose one's head

1 6.4
To become very upset and unable to think clearly
  • idiom
  • Informal
translation icon : perder la cabeza
  • I lost my head, that's all.

Examples

Synonyms

to lose it
vsto lose one's head
  • Informal
289 7.5

Suddenly stop controlling your feelings and become very angry or upset

is broader, covering confused thinking as well as sudden emotional loss
to fall apart
vsto lose one's head
  • Informal
193 4.2

To lose control of your feelings because of strong stress or sadness

is similar but focuses more on temporary confusion rather than complete breakdown
to not see straight
vsto lose one's head
6 7.0

To not be able to think clearly because you are very tired, angry, or confused

adds a stronger sense of becoming upset in stressful situations
to lose one's mind
vsto lose one's head
  • Informal
1 6.7

Become very anxious, confused, or upset and act in a way that does not make sense

is similar but centers on being upset and unable to think clearly
to lose the bubble
vsto lose one's head
  • Informal
1 9.9

Fail to follow what is happening and become confused

covers that confusion but also includes strong upset and inability to think
to lose one's cookies
vsto lose one's head
  • Informal
1 9.9

To become very upset or frightened

is broader, adding general confusion and inability to think clearly
to lose one's wits
vsto lose one's head
7.9

To get very confused and unable to think clearly

is broader, adding strong upset in difficult or stressful situations
to lose the run of oneself
vsto lose one's head
  • Archaic
9.9

Act in a confused or uncontrolled way because of strong emotion

is like this but emphasizes general upset and confusion in stress
to lose one's cool
vsto lose one's head
  • Informal
5.9

To suddenly become very angry and fail to control your feelings

includes such anger but also other forms of upset and confused thinking

Antonyms

to clear one's head
1 3.9

To stop thinking about upsetting or confusing thoughts to feel calmer

How Confused

to panic
272 2.3
to lose one's head
  • Informal
1 6.4

Surface Forms

lose one's head infinitive
losing one's head present participle
loses one's head third person singular
lost one's head past
lost one's head past participle

Morphology

lose + one's + head

The components 'lose' (to cease to have) and 'head' (metonymically used for mind or composure) give a clear metaphorical clue that someone has lost self-control or clear thinking. However, the precise idiomatic sense ‘become very upset/confused or unable to think clearly’ is an extended, conventionalized meaning that a B1 learner may not reliably infer from the parts alone, so it is only partially transparent.

Etymology

Lose one's head comes from the vivid idea of actually losing your head, the part used for thinking and control. When people panic and cannot think, they act as if they have 'lost' their head, so the phrase means 'to become very upset or unable to think clearly'.