Thesaurus.com
Dictionary.com
Showing results for lethargic. Search instead for lethargi.
Definitions

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

But never have I seen a team with so much potential and skill be so absolutely lethargic and unwatchable this season.

From Los Angeles Times • Dec. 27, 2025

Derek: Three points but another slow, lethargic performance.

From BBC • Dec. 15, 2025

And once again they were devoid of inspiration and energy in another lethargic display that left them languishing in 11th place, eight points behind leaders Arsenal.

From Barron's • Nov. 22, 2025

Suddenly, it all made sense—the nausea, the dizziness, the feeling of being heavy and lethargic.

From "Copper Sun" by Sharon M. Draper

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.