Somnolence vs. Lethargy

Somnolencenoun

A state of drowsiness or sleepiness.

Somnolencenoun

Sleepiness; drowsiness; inclination to sleep.

Somnolencenoun

a very sleepy state;

Somnolence

Somnolence (alternatively sleepiness or drowsiness) is a state of strong desire for sleep, or sleeping for unusually long periods (compare hypersomnia). It has distinct meanings and causes.

Lethargynoun

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

Lethargynoun

A state of extreme torpor or apathy, especially with lack of emotion or interest; loosely, sluggishness, laziness.

Lethargynoun

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

Lethargynoun

A state of inaction or indifference.

Lethargyverb

To lethargize.

Lethargynoun

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

Lethargynoun

weakness characterized by a lack of vitality or energy

Lethargynoun

inactivity; showing an unusual lack of energy

Lethargy

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