LETHARGIC Synonyms: 60 Similar and Opposite Words

lethargic

adjective

lə-ˈthär-jik

Definition of lethargic

as in sleepy

slow to move or act a big meal always makes me feel lethargic and sleepy

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of lethargic Female mice dosed with QACs lost interest in food, became lethargic and short of breath, and began to lose muscle control during late pregnancy. — Sandee Lamotte, CNN Money, 7 Aug. 2026 The expansion to California’s film and TV tax credit program hasn’t notably curbed lethargic production levels in Los Angeles, at least not yet. — Winston Cho, HollywoodReporter, 23 July 2026 Signs of heat stroke in dogs include heavy panting and drooling, being weak or lethargic, bright red gums and bloodshot eyes. — Renee Anderson, CBS News, 29 June 2026 When to Contact a Wildlife Rehabilitator Always contact a wildlife rehabilitator if the turtle appears injured, such as having a cracked shell, or seems lethargic or sick. — Michelle Mastro, Martha Stewart, 29 June 2026 See All Example Sentences for lethargic

Recent Examples of Synonyms for lethargic

Adjective

What was once a boring, sleepy issue where the PUC made decisions more or less in a vacuum is no longer the case.

— Jordan Blum, Fortune, 18 Oct. 2026
On what had been something of a sleepy early Saturday afternoon for the Washington Capitals, Ryan Leonard suddenly produced a scintillating effort that ignited the home team.

— Des Bieler, Washington Post, 17 Oct. 2026

Definition of sleepy

Adjective

Many of the strongest initial applications are the dull, dirty, and dangerous tasks that go unfilled, contribute to injuries, and pull people away from higher-value judgment and exception handling.

— Navin Chaddha, Fortune, 16 Oct. 2026
But in the years between Logic1000’s in-your-face debut EP and 2024’s duller, more careful Mother, her solo work became less singular.

— Cassidy Sollazzo, Pitchfork, 14 Oct. 2026

Definition of dull

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lethal

lethargic

lethargically

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“Lethargic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/lethargic. Accessed 22 Oct. 2026.

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Synonyms of lethargic

adjective

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