Copyright © Philip M. Parker, INSEAD. Terms of Use.

Definitions: Lethargy |
LethargyNoun1. A state of comatose torpor (as found in sleeping sickness). 2. Weakness characterized by a lack of vitality or energy. 3. Inactivity; showing an unusual lack of energy. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "lethargy" was first used in popular English literature: sometime before 1321. (references) |
| Domain | Definitions |
Health | Abnormal drowsiness or stupor; a condition of indifference. (references) |
Nuclear Energy & Physics | Natural logarithm of the ratio of a reference energy to the energy of a neutron. Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
Synonyms: LethargySynonyms: inanition (n), languor (n), lassitude (n), phlegm (n), sluggishness (n). (additional references) |
| Context | Synonyms within Context (source: adapted from Roget's Thesaurus). |
Inactivity | Dullness; Adjective: languor; segnity, segnitude; lentor; sluggishness; (slowness); procrastination; (delay); torpor, torpidity, torpescence; stupor; (insensibility); somnolence; drowsiness; Adjective: nodding; Verb: oscitation, oscitancy; pandiculation, hypnotism, lethargy; statuvolence heaviness, heavy eyelids. |
Insensibility | Torpor, torpidity; obstupefaction, lethargy, coma, trance, vegetative state; sleep; suspended animation; stupor, stupefaction; paralysis, palsy; numbness; (physical insensibility). |
| Source: adapted from Roget's Thesaurus. | |
Crosswords: Lethargy |
| English words defined with "lethargy": Carus ♦ -gies ♦ hebetude ♦ Lethargical ♦ major depressive episode ♦ narcotic ♦ soporiferous, soporific. (references) |
| Specialty definitions using "lethargy": African lethargy ♦ Borna disease ♦ high-altitude pulmonary edema ♦ Near Eastern equine encephalomyelitis ♦ Sardanapalus, somnolence syndrome ♦ Worms. (references) |
| Domain | Title |
Books | |
Source: compiled by the editor from various references; see credits. | |
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
Pulmonary disease common symptoms are fever, cough, and chest pain; for central nervous system disease symptoms are usually headache, lethargy, confusion, seizures, and sudden onset of neurologic deficit.Credit: CDC. | ![]() | Southern lethargy leaves cotton in the fields long after time for picking. Tract number 453. Johnson County, North Carolina.Credit: Library of Congress. | |
Source: compiled by the editor from various references; see credits. | |||
| Title | Author | Quote |
Les Miserables | Hugo, Victor | The rough movements of the man handling him, the coolness of the night, and breathing the fresh air freely, had roused him from his lethargy. |
Source: compiled by the editor from various references. | ||
| Subject | Topic | Quote |
Health | Symptoms of HUS include fever, lethargy, irritability, and pallor. (references) | |
This is especially urgent if the child shows symptoms of stiff neck, extreme lethargy, or abundant vomiting. (references) | ||
LAC encephalitis initially presents as a nonspecific summertime illness with fever, headache, nausea, vomiting and lethargy. (references) | ||
Economic History | Sri Lanka | Lethargy and indifference on the part of mid- and lower-level public servants compound transparency problems. (references) |
Political Economy | Sri Lanka | In addition to the impact of the armed conflict, business people remain concerned about lethargy and indecisiveness in the bureaucracy, the politicization of major government projects and deals, inadequate maintenance and upgrading of infrastructure, corruption, inflexible labor laws and militant trade unions. (references) |
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| "Lethargy" is generally used as a noun (singular) -- approximately 100.00% of the time. "Lethargy" is used about 123 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (singular) | 100% | 123 | 28,925 |
Source: compiled by the editor from several corpora; see credits.
Expression using "lethargy": African lethargy. Additional references. | |
| Source: compiled by the editor from various references; see credits. |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
lethargy | 54 |
dog lethargy | 5 |
dog in lethargy | 3 |
cause lethargy | 3 |
canine lethargy | 2 |
hamster in lethargy | 2 |
| Source: compiled by the editor from various references; see credits. | |
| Language | Translations for "lethargy"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Albanian | letargji (hibernation), përgjumje (drowse, somnolence, somnolency). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arabic | فتور (coldness, coolness, frigidity, languishment, letdown, sluggishness, tepidity, torpidity, torpor), كسل (drowse, idleness, inaction, inactivity, indolence, inertia, languor, lassitude, laziness, sloth, slothful, sluggard, sluggishness), نعاس (drowse, drowsiness, fall, sleepiness, somnolence), سبات (coma, sleep, sopor, stupor, torpor), بلادة (dullness, sluggishness, stupidity, torpidity, torpor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bulgarian | сънливост (drowsiness, somnolence, somnolency), отпуснатост (enervation, flabbiness, languor, laxity, looseness, slouch), летаргия (dormancy, hibernation, quiescence, quiescency, suspended animation), инертност (heaviness, inaction, inactivity, inertia, inertness, quiescence, quiescency, stagnancy, stagnation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chinese | 慵倦. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Czech | letargie (dormancy). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Danish | letargi. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dutch | lethargie, doffe onverschilligheid. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Esperanto | letargio. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Farsi | موت کاذب , مرگ کاذب , تهاون , سنگینی (Avoirdupois, Ballast, Gravity, Weight), سبات , خواب مرگ , رخوت (Indolence, Lassitude, Paralysis), بیحالی (Paralysis, Phlegm), بی علاقگی (Apathy, Indifference, Stupidity, Unconcern). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Finnish | horros (doze, drowse, stupor, torpor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
French | léthargie. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
German | Lethargie, Schlafsucht (hypersomnia, somnolence). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Greek | ληθαργία, λήθαργοσ (coma, hibernation, sopor), λήθαργος (deep coma, deep lethargy, dormancy, mental numbness, stupor, stuporous state). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hebrew | תר"מ" (hibernation, slumber, trance), ר"מת (stupor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hungarian | letargia, közöny (deadness, detachment, ennui, frigidity, indifference, languidity, phlegm, stolidity, unconcern). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Italian | letargia. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Kanji | 昏睡 (coma, dead sleep, stupor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Katakana | ふかつどう (inaction), ""すい (coma, dead sleep, stupor). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manx | saveenys (drowsiness, repose, somnolence), gorley cadlee (narcolepsy, sleeping sickness), eer-saveenys, chingys cadlee (sleepy sickness). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pig Latin | ethargylay letargia (coma, dullness, stupor, torpidity, torpor). (various references) letargie. (various references) вялость (apathy, atony, flabbiness, inertia, inertness, languor, lassitude, limpness, listlessness, wilt), летаргия (langer). (various references) letargija, mrtvilo (deadness, impasse, stagnancy). (various references) letargo (heaviness, slumber, torpidity, torpor). (various references) letargi (torpor). (various references) ความเฉื่อยชา (inaction), ความเซื่องซึม. (various references) letarji, uyuklama (doze, kip, lay down, shuteye, sleepiness, slumber, slumbers, snooze, somnolence, zizz), uyuşukluk (deadness, dormancy, drowsiness, indolence, inertia, inertness, numbness, sloth, sluggishness, somnolence, stupefaction, stupor, torpidity, torpidness, torpor), rehavet. (various references) апатичність, летаргія. (various references) trạng thái hôn mê, tính thờ ơ (apathy, listlessness, nonchalance, pococuranteism, pococurantism, unmindfulness), giấc ngủ lịm tính lờ phờ. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Misspellings | |
"Lethargy" is suggested in spellcheckers for the following: clethra, lithurgy. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "lethargy" (pronounced le"therjē) |
| 3 | -er j ē | allergy, energy, liturgy, metallurgy, synergy. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-e-g-h-l-r-t-y" | |
-1 letter: earthly, greatly, lathery. | |
-2 letters: argyle, earthy, elytra, gather, gyrate, halter, hearty, hyetal, lather, lyrate, realty, tergal, thaler. | |
-3 letters: aglet, agley, alert, alter, argle, artel, early, earth, ethyl, garth, gayer, gerah, glare, glary, grate, great, gyral, haler, hater, hayer, heart, lager, large, later, lathe, lathy, layer, leary, lyart, ratel, rathe, regal, relay, retag, rhyta. | |
| Words containing the letters "a-e-g-h-l-r-t-y" | |
+2 letters: telegraphy. | |
+4 letters: bigheartedly, farsightedly, geothermally, hearteningly, rheumatology, shatteringly. | |
+5 letters: copyrightable, grandfatherly, grandmotherly, hypervigilant, lethargically, metallography, nearsightedly, plethysmogram, stylographies, threateningly. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)4C 65 74 68 61 72 67 79 |
| Leonardo da Vinci (1452-1519; backwards) (references)
|
| American Sign Language (origins from 1620-1817 in Italy and, especially, France) (references)
|
| Semaphore (1791, in France) (references)
|
| Braille (1829, in France) (references)
|
Morse Code (1836) (references).-.. . - .... .- .-. --. -.--. |
| Dancing Men (Sir Arthur Conan Doyle, 1903) (references)
|
Binary Code (1918-1938, probably earlier) (references)01001100 01100101 01110100 01101000 01100001 01110010 01100111 01111001 |
HTML Code (1990) (references)L e t h a r g y |
ISO 10646 (1991-1993) (references)004C 0065 0074 0068 0061 0072 0067 0079 |
| British Sign Language (Fingerspelling, BSL; 1992, British Deaf Association Dictionary of British Sign Language) (references)
|
Encryption (beginner's substitution cypher): (references)4671867467847391 |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Commercial | 5. Images: Photo Album 6. Quotations: Fiction 7. Quotations: Non-fiction 8. Usage Frequency | 9. Expressions 10. Expressions: Internet 11. Translations: Modern 12. Derivations | 13. Rhymes 14. Anagrams 15. Orthography 16. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.