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lethargic

[luh-thahr-jik]
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adjective
  1. of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
  2. producing lethargy: The lethargic heat and humidity of the day made me want to do nothing but nap.
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Also le·thar·gi·cal.

Origin of lethargic

1350–1400; < Latin lēthargicus < Greek lēthargikós; replacing Middle English litargik < Medieval Latin litargicus (see lethargy, -ic)
Related formsle·thar·gi·cal·ly, adverbhy·per·le·thar·gic, adjectivenon·le·thar·gic, adjectivenon·le·thar·gi·cal, adjectivenon·le·thar·gi·cal·ly, adverbun·le·thar·gic, adjectiveun·le·thar·gi·cal, adjectiveun·le·thar·gi·cal·ly, adverb

Synonyms

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1. lazy, indolent, torpid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for lethargical

lethargic

adj.

late 14c., litargik, from Latin lethargicus "affected with lethargy," from Greek lethargikos, from lethargos (see lethargy). Related: Lethargically.

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Online Etymology Dictionary, © 2010 Douglas Harper