Languorous (adjective)

1. Characterized by a state of physical or mental weariness; lacking energy or enthusiasm.
2. Characterized by a state of listlessness or indolence.

Origin:

Middle english, from anglo-french, from latin languidus, from languere to be weak.

Examples:

1. The heat of the day caused a languorous feeling that made it difficult to focus on work.
2. The patient's illness left her in a state of languorous weakness.
3. The tropical climate induced a feeling of languorous laziness in the travelers.
4. The dancers moved with a languorous grace.
5. The slow music and dim lighting created a sense of languorous atmosphere in the room.