Lethargy vs. Drowsiness — What's the Difference?

Lethargy is a state of tiredness, weariness, fatigue, or lack of energy. It can be accompanied by depression, decreased motivation, or apathy.

Dull with sleepiness; sluggish.

A lack of energy or vigor; sluggishness.

Produced or characterized by sleepiness.

A lack of interest or enthusiasm; apathy

Inducing sleepiness; soporific.

(Medicine) An abnormal state of drowsiness, as caused by disease or drugs.

State of being drowsy.

A state of extreme torpor or apathy, especially with lack of emotion, energy or enthusiasm; (loosely) sluggishness, laziness.

State of being drowsy.

(pathology) A condition characterized by extreme fatigue or drowsiness, deep unresponsiveness, or prolonged sleep patterns.

A very sleepy state;

Morbid drowsiness; continued or profound sleep, from which a person can scarcely be awaked.

A state of inaction or indifference.

To lethargize.

A state of comatose torpor (as found in sleeping sickness)

Weakness characterized by a lack of vitality or energy

Inactivity; showing an unusual lack of energy