lethargic

[luh-thahr-jik] / ləˈθɑr dʒɪk /

ADJECTIVE

lazy, sluggish

Synonyms

STRONGEST

apathetic dull lackadaisical laid-back languid listless passive sleepy

WEAK

blah comatose debilitated dilatory dopey dormant draggy drowsy enervated having spring fever heavy idle impassive inactive indifferent inert laggard languorous moony nebbish out of it phlegmatic sleepyhead slothful slow slumberous snoozy somnolent spiritless stolid stretchy stupefied supine torpid wimpy

Antonyms

STRONGEST

active alert animated caring energetic lively vivacious

WEAK

busy vital

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

That show is growing duller, and more lethargic and repetitive, by the day, like watching reruns of a canceled sitcom.

From Salon • Feb. 13, 2026

"It was just a really lethargic performance in the first half, but the second half was everything I wanted to see."

From Barron's • Jan. 31, 2026

Derek: Three points but another slow, lethargic performance.

From BBC • Dec. 15, 2025

Dr Em May Armstrong, a plant researcher, says the key is finding the balance between resting more and becoming too lethargic.

From BBC • Nov. 10, 2025

Near the lone hangar, lethargic mechanics in grease-stained uniforms poked among the entrails of decrepit jets far removed from their vintage years.

From "The Great Santini" by Pat Conroy

Vocabulary lists containing lethargic

ASVAB Word Knowledge

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Essential Academic Vocabulary for High School Students, List 3

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ACT Vocabulary List

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