Lethargy vs. Malaise

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

As a medical term, malaise is a feeling of general discomfort, uneasiness, or pain, and often the first sign of an infection or other disease. The word has existed in French since at least the 12th century.

A lack of energy or vigor; sluggishness.

A vague feeling of bodily discomfort, as at the beginning of an illness.

A lack of interest or enthusiasm; apathy

A general sense of depression or unease

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

A feeling of general bodily discomfort, fatigue or unpleasantness, often at the onset of illness.

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

An ambiguous feeling of mental or moral depression.

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

Ill will or hurtful feelings for others or someone.

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

An indefinite feeling of uneasiness, or of being sick or ill at ease.

A state of inaction or indifference.

physical discomfort (as mild sickness or depression)

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