lassitude

Definitions

A state of physical or mental weariness; lack of energy.

A condition of listlessness or indifference.

Examples

After the long hike, a feeling of profound lassitude overcame him, and he could barely keep his eyes open.

The humid summer heat induced a sense of lassitude that made it difficult for the students to focus on their studies.

Synonyms

lethargy weariness fatigue languor exhaustion listlessness torpor

Antonyms

energy vigor vitality enthusiasm animation liveliness spirit