How do you use "decelerate" in a sentence?

The economy began to decelerate in the third quarter as consumer confidence dropped. Drivers must decelerate well in advance of the sharp bend to avoid losing control. Population growth in the region has decelerated markedly over the past two decades.

decelerate

Q: What does "decelerate" mean?

To reduce speed or the rate of progress; to slow down. Decelerate is the formal antonym of 'accelerate' and is used both literally (vehicles slowing down) and figuratively (economic growth slowing). It is more precise than 'slow down' and is preferred in technical, scientific, and economic writing. Common collocations include 'decelerate sharply,' 'decelerate gradually,' and references to economic growth, inflation, or expansion decelerating.

Advanced Vocabulary Word British ★★★☆☆ Moderate Formal

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Meaning: To reduce speed or the rate of progress; to slow down.

减速，降低速度或进展速率；放慢。

Reducir la velocidad o el ritmo de progreso; ralentizarse.

速度や進行の割合を落とすこと。減速すること。

속도나 진행 비율을 줄이다. 느려지다.

Decelerate is the formal antonym of 'accelerate' and is used both literally (vehicles slowing down) and figuratively (economic growth slowing). It is more precise than 'slow down' and is preferred in technical, scientific, and economic writing. Common collocations include 'decelerate sharply,' 'decelerate gradually,' and references to economic growth, inflation, or expansion decelerating.

'decelerate'是'accelerate'的正式反义词，既用于字面意义（车辆减速），也用于比喻意义（经济增长放缓）。它比'slow down'更精确，在技术、科学和经济写作中更受青睐。常见搭配包括'decelerate sharply'（急剧减速）、'decelerate gradually'（逐渐减速），以及经济增长、通货膨胀或扩张减速的相关表述。

Es el antónimo formal de «accelerate» y se emplea tanto en sentido literal (vehículos que reducen velocidad) como figurado (desaceleración del crecimiento económico). Resulta más preciso que «slow down» y se prefiere en textos técnicos, científicos y económicos. Las colocaciones habituales incluyen «decelerate sharply», «decelerate gradually» y referencias a la desaceleración del crecimiento económico, la inflación o la expansión.

「accelerate」の格式ばった反意語であり、字義通りの意味（車両の減速）でも比喩的な意味（経済成長の鈍化）でも使われる。「slow down」より正確で、技術的・科学的・経済的な文章で好まれる。「decelerate sharply（急激に減速する）」「decelerate gradually（徐々に減速する）」、および経済成長・インフレ・拡大の減速に関する言及がよく使われる共起表現である。

Decelerate는 'accelerate'의 격식체 반의어로, 문자 그대로(차량의 감속)와 비유적으로(경제 성장 둔화) 모두 사용됩니다. 'slow down'보다 더 정확하며 기술, 과학, 경제 관련 글에서 선호됩니다. 흔한 연어로는 'decelerate sharply(급격히 감속하다)', 'decelerate gradually(점진적으로 감속하다)', 그리고 경제 성장·인플레이션·확장의 감속에 관한 표현이 있습니다.

Examples

The economy began to decelerate in the third quarter as consumer confidence dropped.
随着消费者信心下降，经济在第三季度开始减速。
La economía empezó a desacelerarse en el tercer trimestre a medida que caía la confianza del consumidor.
消費者信頼感が低下する中、経済は第3四半期に減速し始めました。
소비자 신뢰 지수가 하락하면서 경제는 3분기에 감속하기 시작했습니다.
Drivers must decelerate well in advance of the sharp bend to avoid losing control.
驾驶员必须在急弯前提前减速，以避免失控。
Los conductores deben desacelerar con suficiente antelación antes de la curva cerrada para no perder el control.
ドライバーは制御を失わないよう、急カーブの手前で十分に減速しなければなりません。
운전자는 통제력을 잃지 않도록 급커브 훨씬 전에 감속해야 합니다.
Population growth in the region has decelerated markedly over the past two decades.
过去二十年来，该地区的人口增长明显放缓。
El crecimiento demográfico de la región se ha desacelerado notablemente en las dos últimas décadas.
この地域の人口増加は、過去20年間で著しく減速しました。
이 지역의 인구 증가는 지난 20년간 현저히 감속했습니다.

Pronunciation

Usage Guide

Context: academic, professional, media

Tone: neutral

Origin & History

Formed in English in the late 19th century from de- (reversal) and accelerate, on the model of the Latin prefix de- (down, away from). It gained wider currency in the 20th century with the rise of automotive and economic vocabulary.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal