of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
producing lethargy: The lethargic heat and humidity of the day made me want to do nothing but nap.

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 for lethargic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lethargic

Contemporary Examples of lethargic

Historical Examples of lethargic

  • Thorpe had a fleeting pride in the lethargic, composed front he was able to present.

    The Market-Place

    Harold Frederic

  • The Father confident in his strength, but he felt heavy and lethargic.

    B. C. 30,000

    Sterner St. Paul Meek

  • He was a large, lethargic man, who had commonplace views on all subjects.

    The Secret House

    Edgar Wallace

  • About noon they all seemed to wake up from their lethargic state.

    Blown to Bits

    R.M. Ballantyne

  • If anything, slightly lazy or lethargic in his emotional life.


    Jack London

Word Origin and History for lethargic

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

Online Etymology Dictionary, © 2010 Douglas Harper