Lethargy

имя существительное 1) [медицина] летаргия 2) вялость, апатичность, апатия Синоним(ы): torpor, inertness, apathy

Большой англо-русский словарь

Lethargy

летаргия (нейтронов в процессе замедления)

Англо-русский политехнический словарь

Lethargy

noun Etymology: Middle English litargie, from Medieval Latin litargia, from Late Latin lethargia, from Greek lēthargia, from lēthargos forgetful, lethargic, irregular from lēthē 1. abnormal drowsiness 2. the quality or state of being lazy, sluggish, or indifferent Synonyms: lethargy, languor, lassitude, stupor, torpor mean physical or mental inertness. lethargy implies such drowsiness or aversion to activity as is induced by disease, injury, or drugs Example: months of lethargy followed my accident. languor suggests inertia induced by an enervating climate or illness or love Example: languor induced by a tropical vacation. lassitude stresses listlessness or indifference resulting from fatigue or poor health Example: a depression marked by lassitude. stupor implies a deadening of the mind and senses by shock, narcotics, or intoxicants Example: lapsed into an alcoholic stupor. torpor implies a state of suspended animation as of hibernating animals but may suggest merely extreme sluggishness Example: a once alert mind now in a torpor.

Merriam-Webster's Collegiate Dictionary