Definition

1. Noun:
   • A state of sluggishness, inactivity, or lack of energy: A condition marked by drowsiness, fatigue, and low motivation for physical or mental activity.
   • A state of torpor or stupor: A more severe condition resembling a deep, unnatural sleep or coma, often associated with illness.

Usage and Examples

• Noun:
  • The heat wave induced a feeling of lethargy in the entire city.
  • After the large meal, a sense of lethargy kept him on the sofa all afternoon.
  • The patient's lethargy was a concerning symptom for the doctors.

Advanced Usage and Nuances

• Medical Context: In clinical settings, "lethargy" describes an abnormal state of drowsiness or unresponsiveness, more severe than simple tiredness.
  • The child's fever was accompanied by lethargy, prompting an urgent visit to the clinic.
• Figurative Use: Can describe a lack of action or enthusiasm in non-physical contexts.
  • There is a political lethargy among the electorate, with very low voter turnout.

Variants and Related Words

• Lethargic (Adjective): Affected by or characteristic of lethargy; sluggish and apathetic.
  • The medication made him feel lethargic for hours.
• Lethargically (Adverb): In a lethargic manner.
  • He moved lethargically through his morning routine.

Synonyms

• Sluggishness: The quality of being slow-moving or inactive.
• Languor: A state of tiredness or inertia, often with a pleasant feeling of relaxation.
• Torpor: A state of physical or mental inactivity; insensibility.
• Stupor: A state of near-unconsciousness or insensibility.

Antonyms

• Energy: The capacity for vigorous activity.
• Vitality: The state of being strong and active; liveliness.
• Alertness: The quality of being vigilant and quick to respond.

Idioms and Common Phrases

• To sink into lethargy: To gradually enter a state of lethargy.
  • After losing his job, he sank into a deep lethargy.
• To shake off lethargy: To make an effort to become active and energetic again.
  • The team needs to shake off its lethargy and start playing with passion.

Noun

1. inactivity; showing an unusual lack of energy
   • the general appearance of sluggishness alarmed his friends
2. weakness characterized by a lack of vitality or energy
3. a state of comatose torpor (as found in sleeping sickness)