What does lethargy mean?

Definitions for lethargy
ˈlɛθ ər dʒilethar·gy

This dictionary definitions page includes all the possible meanings, example usage and translations of the word lethargy.

Princeton's WordNet

  1. lethargy, lassitude, sluggishnessnoun

    a state of comatose torpor (as found in sleeping sickness)

  2. inanition, lassitude, lethargy, slacknessnoun

    weakness characterized by a lack of vitality or energy

  3. languor, lethargy, sluggishness, phlegm, flatnessnoun

    inactivity; showing an unusual lack of energy

    "the general appearance of sluggishness alarmed his friends"


  1. lethargynoun

    A condition characterised by extreme fatigue or drowsiness, or prolonged sleep patterns.

  2. lethargynoun

    A state of extreme torpor or apathy, especially with lack of emotion or interest; loosely, sluggishness, laziness.

  3. Etymology: From lethargia, from ληθαργία, from λήθαργος, from λήθη + ἀργός.

Samuel Johnson's Dictionary

  1. LETHARGYnoun

    A morbid drowsiness; a sleep from which one cannot be kept awake.

    Etymology: ληϑαϱγία; lethargie, Fr.

    The lethargy must have his quiet course;
    If not, he foams at mouth, and by and by
    Breaks out to savage madness. William Shakespeare, Othello.

    Though his eye is open, as the morning’s,
    Towards lusts and pleasures; yet so fast a lethargy
    Has seiz’d his powers towards publick cares and dangers,
    He sleeps like death. John Denham, Sophy.

    Europe lay then under a deep lethargy; and was no otherwise to be rescued from it, but by one that would cry mightily. Francis Atterbury.

    A lethargy is a lighter sort of apoplexy, and demands the same cure and diet. John Arbuthnot, on Diet.


  1. Lethargy

    Lethargy is a state of tiredness, sleepiness, weariness, fatigue, sluggishness or lack of energy. It can be accompanied by depression, decreased motivation, or apathy. Lethargy can be a normal response to inadequate sleep, overexertion, overworking, stress, lack of exercise, improper nutrition, boredom, or a symptom of an underlying illness or a disorder. It may also be a side-effect of medication or caused by an interaction between medications or medication(s) and alcohol. It may also be an altered level of consciousness.When part of a normal response, lethargy often resolves with rest, adequate sleep, decreased stress, physical exercise, and good nutrition. Lethargy's symptoms however can last days or even months, so it can be a sign of a recent underlying illness or infection if it doesn't resolve normally.


  1. lethargy

    Lethargy is a state of physical sluggishness, fatigue, or lack of energy, often accompanied by mental dullness or apathy. It can be a symptom of a variety of physical or mental health conditions. Lethargy can be characterized by persistent tiredness, lack of motivation to engage in normal activities, decreased alertness, and slowed or impaired thinking.

Webster Dictionary

  1. Lethargynoun

    morbid drowsiness; continued or profound sleep, from which a person can scarcely be awaked

  2. Lethargynoun

    a state of inaction or indifference

  3. Lethargyverb

    to lethargize

  4. Etymology: [F. lthargie, L. lethargia, Gr. lhqargi`a, fr. lh`qargos forgetful, fr. lh`qh forgetfulness. See Lethe.]


  1. Lethargy

    Lethargy was a technical death metal band formed in Rochester, New York in 1992 and disbanded in December 1999. Their last performance was on Christmas night of 1999. Drummer Brann Dailor and guitarist Bill Kelliher would later appear in Today Is the Day and Mastodon. Guitarist and vocalist Erik Burke is currently active in Nuclear Assault, Sulaco, Kalibas, Brutal Truth, and B.C.T..

Chambers 20th Century Dictionary

  1. Lethargy

    leth′ar-ji, n. heavy unnatural slumber: dullness.—v.t. (Shak.) to make lethargic.—adjs. Lethar′gic, -al, pertaining to lethargy: unnaturally sleepy: dull.—adv. Lethar′gically.—n. Lethar′gicness, the state of being lethargic: morbid sleepiness.—v.t. Leth′argise. [Fr.,—L.,—Gr. lēthargia, drowsy forgetfulness—lēthē, forgetfulness.]

U.S. National Library of Medicine

  1. Lethargy

    A general state of sluggishness, listless, or uninterested, with being tired, and having difficulty concentrating and doing simple tasks. It may be related to DEPRESSION or DRUG ADDICTION.

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  1. Chaldean Numerology

    The numerical value of lethargy in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of lethargy in Pythagorean Numerology is: 6

Examples of lethargy in a Sentence

  1. Michel Eyquem de Montaigne:

    Once conform, once do what others do because they do it, and a kind of lethargy steals over all the finer senses of the soul.

  2. Virginia Woolf:

    Once conform, once do what other people do because they do it, and a lethargy steals over all the finer nerves and faculties of the soul.

  3. Tom Shimabukuro:

    The important thing to note here is the initial features are largely kind of nonspecific symptoms, which at initial presentation -- or when a patient starts to become symptomatic -- may seem kind of mild and not that clinically significant -- things like headaches, lethargy, chills, myalgia, later features include severe headache, some focal signs, in one case severe abdominal pain, bruising, swelling in the lower extremities.

  4. Ashok Gulati:

    Every year, a large amount of funds allocated for irrigation lie unutilized and that's because of lethargy, red tape, inept administration and a lack of political will.

  5. Ashutosh Tewari:

    When a bacterial infection occurs in the urological region, lethargy, fever and sometimes white blood counts can go up.

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Translations for lethargy

From our Multilingual Translation Dictionary

  • سبات، نعاس، فتور، بلادةArabic
  • letargiaCatalan, Valencian
  • Teilnahmslosigkeit, Trägheit, Lethargie, Nonchalance, Interesselosigkeit, SchlafsuchtGerman
  • λήθαργοςGreek
  • atonía, sopor, letargo, aletargamientoSpanish
  • letargia, uupumus, saamattomuusFinnish
  • léthargie, nonchalance, langueurFrench
  • सुस्तीHindi
  • թմրածություն, լեթարգիա, անտարբերություն, մահաքուն, կեղծամահArmenian
  • 昏睡, 疲労, 無関心Japanese
  • 혼수Korean
  • kelesuan, letargiMalay
  • slaapzucht, lethargie, futloosheid, onverschilligheid, lusteloosheidDutch
  • letargieRomanian
  • летаргия, вялость, усталость, апатичность, утомлениеRussian
  • سستیUrdu
  • לעטהאַרגיYiddish
  • 昏睡Chinese

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"lethargy." Definitions.net. STANDS4 LLC, 2024. Web. 29 Feb. 2024. <https://www.definitions.net/definition/lethargy>.

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    cause to feel shame; hurt the pride of
    • A. denudate
    • B. abase
    • C. efface
    • D. scarper

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