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lethargy

[ leth-er-jee ]
/ ˈlɛθ ər dʒi /
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noun, plural leth·ar·gies.
the quality or state of being drowsy and dull, listless and unenergetic, or indifferent and lazy; apathetic or sluggish inactivity.
Pathology. an abnormal state or disorder characterized by overpowering drowsiness or sleep.
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Origin of lethargy

1325–75; <Late Latin lēthargia<Greek lēthargía, equivalent to lḗtharg(os) drowsy + -ia-y3 (see Lethe, -algia); replacing Middle English litargie<Medieval Latin litargīa<Late Greek, Greek, as above

OTHER WORDS FROM lethargy

hy·per·leth·ar·gy, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use lethargy in a sentence

British Dictionary definitions for lethargy

lethargy
/ (ˈlɛθədʒɪ) /

noun plural -gies
sluggishness, slowness, or dullness
an abnormal lack of energy, esp as the result of a disease

Derived forms of lethargy

lethargic (lɪˈθɑːdʒɪk) or lethargical, adjectivelethargically, adverb

Word Origin for lethargy

C14: from Late Latin lēthargīa, from Greek lēthargos drowsy, from lēthē forgetfulness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for lethargy

lethargy
[ lĕthər-jē ]

n.
A state of sluggishness, inactivity, and apathy.
A state of unconsciousness resembling deep sleep.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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