adj
lethargic
luh-THAH-jihk
adj
1
Lacking energy or enthusiasm; sluggish and drowsy.
"The heat made everyone feel lethargic by mid-afternoon."
"He'd been feeling lethargic all week and finally saw a doctor."
How to Use Lethargic
Learner’s notesIn plain EnglishTired, sluggish, and without much energy or drive.
Easily confused with
Common pairings
feel lethargic
lethargic and tired
Word Forms
more lethargic comparative, most lethargic superlative
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Etymology
From Greek lethargikos, from lethargos, "forgetful, drowsy" — built from lethe, "forgetfulness," plus argos, "idle, inactive."