1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum



Updated May 17, 2012


In medical terms, lethargy can mean a state of sluggish inactivity with a lack of interest in doing anything. It can also mean abnormal drowsiness or a state of mental numbness, or both. A person in one of these states can be described as "lethargic."

Pronunciation: LETH-er-jee; leth-AR-jik


Jane was diagnosed with clinical depression when she became so lethargic that she just sat in her chair all day not wanting to do anything that would get her up and moving.

  1. About.com
  2. Health
  3. Bipolar Disorder
  4. Bipolar for Beginners
  5. Glossary
  6. Glossary - I, J, K, L
  7. Lethargy - Definition

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.