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adjective le·thar·gic \lə-ˈthär-jik, le-\

Simple Definition of lethargic

  • : feeling a lack of energy or a lack of interest in doing things

Source: Merriam-Webster's Learner's Dictionary

Full Definition of lethargic

  1. 1 :  of, relating to, or characterized by laziness or lack of energy :  feeling or affected by lethargy :  sluggish

  2. 2 :  indifferent, apathetic

lethargically play \-ji-k(ə-)lē\ adverb

Examples of lethargic in a sentence

  1. You'll need to move your lure as slowly as possible to tempt the lethargic fish into feeding… —Lenny Rudow, Boating, December 1997

  2. … became a drifter and for a time an alcoholic and finally lapsed into lethargic self-abasement. —Stanley Karnow, New York Times Book Review, 14 Oct. 1984

  3. The audience was cold and lethargic. It is true there were about fifty-seven applauses, but they were not roars of enthusiasm by any means. —Lady Bird Johnson, 12 Jan. 1966, in A White House Diary,1970

  4. The patient is weak and lethargic.

  5. <a big meal always makes me feel lethargic and sleepy>

Did You Know?

In Greek mythology, Lethe was the name of a river in the underworld that was also called the River of Unmindfulness or the River of Forgetfulness. Legend held that when someone died, he or she was given a drink of water from the river Lethe to forget all about his or her past life. Eventually this act of forgetting came to be associated with feelings of sluggishness, inactivity, or indifference. The name of the river and the word lethargic, as well as the related noun lethargy, all derive from lethe, Greek for forgetfulness.

Origin of lethargic

(see lethargy)

First Known Use: 14th century

Seen and Heard

What made you want to look up lethargic? Please tell us where you read or heard it (including the quote, if possible).


a timid, meek, or unassertive person

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