Word · CEFR C1 · Frequency #19340
lethargic
无精打采的；缺乏活力的
Sluggish and lacking energy or alertness.
指身体或精神上的疲倦无力
- 1.
Sluggish, slow.
迟缓的,缓慢的
- 2.
deficient in alertness or activity
缺乏警觉或活动的
- 3.
Indifferent, apathetic.
冷漠的,无动于衷的
冷漠的；漠不关心的；迟缓的,缓慢的；缺乏警觉或活动的；冷漠的,无动于衷的；昏睡的
In use
After the long flight, I felt too lethargic to even unpack my suitcase.
The hot weather made everyone in the office lethargic and slow to respond.
He was so lethargic that he spent the whole morning staring at the wall.
bullfrogs became lethargic with the first cold nights
be lethargic
描述暂时或长期的状态，后常接原因。
After the heavy meal, he felt lethargic and unable to concentrate.
饱餐一顿后，他感到昏昏欲睡，无法集中精力。
feel lethargic
强调主观感受，常与时间或原因连用。
She feels lethargic every afternoon around 3 o'clock.
她每天下午三点左右都会感到无精打采。
Connections
Collocations
- feel lethargic
- 感到无精打采
- I always feel lethargic after a long day at work.工作一整天后我总是感到无精打采。
- lethargic state
- 无精打采的状态
- The patient lay in a lethargic state, barely responding to questions.病人处于无精打采的状态，对问题几乎没有反应。
- become lethargic
- 变得昏昏欲睡
- He becomes lethargic whenever the weather is hot and humid.每当天气又热又潮湿时，他就变得昏昏欲睡。
- lethargic after a heavy meal
- 饱餐后无精打采的
- She felt lethargic after the heavy meal and wanted to lie down.饱餐一顿后她感到无精打采，想躺下来。
- lethargic economy
- 萎靡不振的经济
- The country's lethargic economy has frustrated its young job seekers.该国萎靡不振的经济让年轻求职者感到沮丧。
Learner notes
Memory Tip
记法：把 lethargic 看成 'let' + 'hargic'，想着 'let it be'——什么都不想管，懒洋洋、行动迟缓。
Context & Register
语域：mixed 常见场景：medical and health descriptions、formal essays and reports、literary or narrative prose lethargic 属于较正式、书面化的用词；在不同搭配中语域稍有变化：描述身体缺乏精力时常见于医疗或健康语境，描述冷漠态度时多用于正式或文学性叙述。日常口语里更常说 tired、sluggish 或 lacking energy，但用 lethargic 也不算错，只是语气偏正式。
Grammar Note
通常作表语或定语，描述缺乏活力或警觉的状态。
Pronunciation & Spelling
No listed word rhymes with 'lethargic' (/ləˈθɑrdʒɪk/) in American English. 'Allergic' and 'energetic' are spelling lookalikes but have different stressed vowels, so they do not rhyme; 'geologic' is close but adds an /r/ before /dʒ/, and 'magic' and 'tragic' also differ in their stressed vowel.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.