lethargy has definitions from the field of medicine
1
[ noun ] (medicine) a state of comatose torpor (as found in sleeping sickness)

Used in print

(Peter J. White, "Report on Laos"...)

We had nearly decided that all the tales of Lao lethargy must be true , when we were invited to take a trip with the Prime_Minister .

(Vina Delmar, The Big Family....)

Now Spencer , seeming with effort to shake himself from lethargy , spoke .

Related terms

torpor hebetude

2
[ noun ] weakness characterized by a lack of vitality or energy

Synonyms

lassitude inanition

Used in print

(Peter J. White, "Report on Laos"...)

We had nearly decided that all the tales of Lao lethargy must be true , when we were invited to take a trip with the Prime_Minister .

Related terms

weakness

3
[ noun ] inactivity; showing an unusual lack of energy

Related terms

inactiveness

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