B2 adjective フォーマル #2,500 よく出る 4分で読める

acute

/əˈkjuːt/

Use 'acute' for problems that are severe and urgent, or senses/minds that are exceptionally sharp.

30秒でわかる単語

  • Means severe, intense, or sharp.
  • Often implies suddenness or criticality.
  • Used for serious problems and highly developed senses.
  • Generally formal; avoid for trivial matters.

Overview

The word 'acute' is a versatile adjective primarily used to describe something that is sharp, severe, or intense. Its core meaning revolves around a high degree of intensity or a finely honed quality. When applied to problems or situations, it signifies a critical or urgent state that demands immediate attention, often implying a sudden onset or a rapidly worsening condition. Think of an 'acute shortage' of a vital resource or an 'acute crisis' that has emerged unexpectedly. This usage carries a sense of gravity and often suggests a turning point or a moment of significant challenge.

Beyond problems, 'acute' also describes senses or mental faculties that are exceptionally keen or perceptive. An 'acute sense of hearing' means someone can detect very faint sounds, while an 'acute intellect' suggests a sharp, quick-witted mind capable of grasping complex ideas easily. This application highlights precision and a high level of sensitivity, whether in physical perception or cognitive ability. It implies a level of discernment that goes beyond the ordinary.

Usage Patterns

'Acute' generally leans towards formal and semi-formal contexts. You'll encounter it frequently in news reports, academic writing, medical diagnoses, and professional discussions. In everyday spoken English, it's less common for describing minor issues but can be used for emphasis when discussing serious matters. For instance, someone might say they have an 'acute pain' to convey its severity, or comment on the 'acute need' for change in a particular situation. Regional variations are minimal; the meaning is quite consistent across English-speaking regions. It's rarely used in very casual slang or informal chat, where words like 'bad,' 'terrible,' or 'intense' might be preferred for less critical situations.

Common Contexts

In the workplace, 'acute' might describe an 'acute problem' in production, an 'acute financial need,' or an 'acute shortage' of staff. In medicine, it's standard terminology for conditions that develop rapidly and are often severe, contrasting with 'chronic' conditions that persist over a long time. Think of 'acute appendicitis' versus 'chronic bronchitis.' In education, it can refer to an 'acute awareness' of a student's needs or an 'acute understanding' of a subject. In broader societal discussions, you might hear about 'acute poverty,' 'acute housing shortages,' or 'acute political tensions.' Literature often employs 'acute' to describe heightened senses or sharp emotions, like an 'acute sense of unease' or an 'acute observation' by a character.

Comparison with Similar Words:

  • Severe: 'Severe' also indicates intensity but is broader. A 'severe storm' is intense, but not necessarily sudden or critical like an 'acute crisis.' 'Severe' can describe something intensely bad or difficult, while 'acute' often implies a critical stage or sharpness.
  • Sharp: 'Sharp' is similar when referring to senses or intellect ('sharp mind'). However, 'sharp' can also mean physically pointed (a sharp knife) or abrupt (a sharp turn), meanings 'acute' doesn't share. When referring to problems, 'acute' implies criticality, whereas 'sharp' is less common in this specific sense.
  • Intense: 'Intense' describes a high degree of emotion, activity, or strength. An 'intense heatwave' is similar to an 'acute problem' in its severity, but 'acute' often carries a connotation of urgency or a critical point that 'intense' might lack.
  • Critical: 'Critical' implies a situation is extremely important, with the possibility of danger or failure. An 'acute situation' is often also a 'critical situation,' but 'acute' emphasizes the severity and suddenness, while 'critical' emphasizes the importance and potential consequences.

Register & Tone

'Acute' carries a formal and serious tone. It's best used when discussing significant issues, critical conditions, or highly developed abilities. Using it for trivial matters can sound overly dramatic or pretentious. For example, calling a slight headache an 'acute headache' might be an exaggeration unless it's truly debilitating and sudden.

Common Collocations:

  • Acute pain: Intense physical discomfort. 'He experienced acute pain in his lower back.'
  • Acute shortage: A severe lack of something essential. 'There is an acute shortage of clean water following the earthquake.'
  • Acute crisis: A moment of intense difficulty or danger. 'The nation is facing an acute economic crisis.'
  • Acute angle: In geometry, an angle less than 90 degrees. 'Draw an acute angle.'
  • Acute hearing/vision: Exceptionally sharp senses. 'The dog's acute hearing allowed it to detect the approaching car.'
  • Acute awareness: A high level of perception or understanding. 'She had an acute awareness of the subtle shifts in the room's atmosphere.'
  • Acute need: A desperate or urgent requirement. 'There is an acute need for affordable housing in the city.'
  • Acute illness: A medical condition with a rapid onset and typically short duration. 'The patient was admitted for an acute respiratory infection.'

例文

1

The doctor diagnosed an acute case of tonsillitis requiring immediate treatment.

medical

The doctor diagnosed an acute case of tonsillitis requiring immediate treatment.

2

There is an acute shortage of affordable housing in major cities.

formal

There is an acute shortage of affordable housing in major cities.

3

He has an acute mind for business, quickly spotting opportunities.

business

He has an acute mind for business, quickly spotting opportunities.

4

The research paper discussed the acute effects of pollution on marine ecosystems.

academic

The research paper discussed the acute effects of pollution on marine ecosystems.

5

She felt an acute sense of loneliness after moving to the new city.

literary

She felt an acute sense of loneliness after moving to the new city.

6

We're facing an acute problem with the server crashing constantly.

informal

We're facing an acute problem with the server crashing constantly.

7

The patient complained of acute abdominal pain.

everyday

The patient complained of acute abdominal pain.

8

The politician addressed the acute need for healthcare reform.

formal

The politician addressed the acute need for healthcare reform.

よく使う組み合わせ

acute pain Intense, sharp physical suffering
acute shortage A severe lack of something essential
acute crisis A moment of intense difficulty or danger
acute angle An angle less than 90 degrees
acute hearing Exceptionally sharp sense of sound
acute awareness Heightened perception or understanding
acute illness A medical condition with rapid onset
acute need An urgent or desperate requirement

よく使うフレーズ

acute angle

A geometric angle measuring less than 90 degrees.

acute pain

Sudden, severe physical discomfort.

acute shortage

A critical lack of something.

acute awareness

A high level of perception.

よく混同される語

acute vs severe

'Severe' indicates intensity or seriousness (e.g., severe storm), while 'acute' often implies a sudden onset or critical stage in addition to intensity (e.g., acute crisis).

acute vs chronic

'Acute' describes conditions that are sudden and often short-term, whereas 'chronic' refers to long-lasting or persistent conditions (e.g., acute illness vs. chronic illness).

acute vs sharp

'Sharp' can mean physically pointed or mentally quick, but 'acute' is preferred for critical problems (acute shortage) and highly developed senses (acute hearing).

文法パターン

acute + noun (e.g., acute pain, acute shortage) an acute sense of + noun (e.g., an acute sense of smell) acute + noun + requiring/demanding + noun (e.g., an acute condition requiring treatment) acute + noun + in + noun (e.g., acute shortage in supply) adverb 'acutely' + adjective/verb (e.g., acutely aware, acutely felt) The noun form 'acuity' is often used with senses (e.g., visual acuity).

How to Use It

使い方のコツ

Generally used in formal or semi-formal contexts; avoid using 'acute' for minor inconveniences as it sounds overly dramatic. It's standard in medical and technical fields. In spoken English, it's used for emphasis on severity and urgency, but less frequently than in writing. Be mindful of its contrast with 'chronic.'


よくある間違い

Learners sometimes overuse 'acute' for anything negative. Remember it implies severity, often with suddenness or criticality. For example, instead of 'acute traffic,' say 'heavy traffic' or 'terrible traffic.' Similarly, a 'mild headache' is not 'acute,' but 'severe' or 'intense' might be appropriate if it's very bad.

Tips

💡

Think Criticality

When you see 'acute,' think 'critical point' or 'sharp turn.' It often signals a situation that needs urgent attention or a skill that's exceptionally refined.

⚠️

Avoid Overuse

Don't use 'acute' for everyday annoyances. Calling a traffic jam 'acute' sounds unnatural; 'frustrating' or 'long' would be better.

🌍

Medical & Technical Jargon

You'll frequently hear 'acute' in medical settings (acute illness) and technical fields (acute angle). Understanding these specific contexts helps grasp its precise meaning.

🎓

Nuance with 'Severe'

While similar to 'severe,' 'acute' often adds a layer of suddenness or a critical threshold. Consider if the situation is not just bad, but also rapidly worsening or at a tipping point.

語源

Derived from the Latin word 'acutus,' meaning 'sharp' or 'pointed,' which itself comes from the verb 'acuere' ('to sharpen'). It entered English in the 14th century, initially referring to sharp points, and later extended to sharp intellects, senses, and critical situations.

文化的な背景

The concept of 'acute' problems resonates globally, highlighting moments of crisis that demand immediate collective or individual action. In Western medicine, the distinction between acute and chronic conditions is fundamental to diagnosis and treatment, reflecting a cultural emphasis on classifying health issues by their temporal nature and severity.

覚え方のコツ

Imagine an 'acorn' (sounds like 'acute') falling suddenly from a tree – it hits with an *acute* impact, causing a sharp problem! Or picture an eagle with *acute* vision spotting its prey from afar.

よくある質問

8 問

'Acute' refers to conditions that develop rapidly and are often severe but short-lived. 'Chronic' describes conditions that persist over a long period, often developing slowly.

Yes, it can describe emotions that are felt very intensely or sharply, such as an 'acute sense of loss' or 'acute embarrassment'.

Not necessarily. While often used for problems (acute pain, acute shortage), it can also describe positive attributes like an 'acute intellect' or 'acute observation skills'.

'Acute' often implies a critical or sudden onset, whereas 'severe' simply indicates a high degree of intensity or seriousness, which might be gradual.

It's generally not recommended. Using 'acute' for minor issues sounds overly dramatic. Words like 'annoying' or 'inconvenient' are more appropriate.

In geometry, an 'acute angle' is an angle that measures less than 90 degrees. It's a specific mathematical usage.

Yes, it's common in business to describe urgent issues like an 'acute cash flow problem' or an 'acute need for restructuring'.

It's pronounced uh-KYOO-t. The stress is on the second syllable.

自分をテスト

fill blank

The sudden economic downturn created an ______ crisis for many small businesses.

正解! おしい! 正解: b

'Acute' is used here to describe a crisis that is severe and likely sudden or critical, fitting the context of an economic downturn.

multiple choice

She has an acute sense of smell, noticing the faintest perfume.

正解! おしい! 正解: c

In this context, 'acute' refers to a sense that is highly developed and sensitive, meaning she can detect subtle smells.

sentence building

pain / felt / He / acute / back / in / his

正解! おしい! 正解: He felt acute pain in his back.

This sentence structure places the subject ('He'), verb ('felt'), adjective modifying the object ('acute pain'), and prepositional phrase ('in his back') correctly.

error correction

The weather is acute today, very cold and windy.

正解! おしい! 正解: The weather is severe today, very cold and windy.

'Acute' is not typically used to describe general weather conditions. 'Severe' is a more appropriate adjective for describing harsh or extreme weather.

スコア: /4

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