lethargically

WordReference Random House Learner's Dictionary of American English © 2026

le•thar•gic /ləˈθɑrdʒɪk/   adj. 

1. drowsy;
   sluggish:
   He's always lethargic after little sleep.
2. causing lethargy:
   a lethargic day.
le•thar•gi•cal•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

le•thar•gic  (lə thär′jik), adj. 

1. of, pertaining to, or affected with lethargy;
   drowsy;
   sluggish.
2. producing lethargy.

Also, le•thar′gi•cal. 

• Medieval Latin litargicus (see lethargy, -ic)
• Greek lēthargikós; replacing Middle English litargik
• Latin lēthargicus
• 1350–1400

le•thar′gi•cal•ly, adv. 
Synonyms

• 1. lazy, indolent, torpid.