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.

“Woods’ movement was lethargic and slow,” sheriff’s deputy Tatiana Levenar wrote in the report.

From Los Angeles Times • Mar. 31, 2026

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

He has looked lethargic behind the stumps, dropping a crucial catch and failing to move for another in Brisbane.

From BBC • Dec. 11, 2025

His movements became more and more lethargic, and presently they stopped altogether.

From "The Subtle Knife" by Philip Pullman