Lethargy(noun) Physical or mental inertness. Hindi meaning:आलस्य, मन्दता Synonyms: Languor, Lassitude, Stupor, Torpor Antonyms: Vigor, Vim, Vitality, Vivacity Example: I snapped out of my lethargy and got to work. Learn it with 19 more words: Daily Vocabulary – 22 July 2018 →