Carbon monoxide is an odorless, colorless, and tasteless gas that is near impossible to identify without a proper detector. It is caused by fuels not burning completely, including wood, gasoline, coal, propane, natural gas, gasoline, and heating oil.
The cause of lethargy may be suggested by its pattern and accompanying symptoms. If it starts in the morning and lasts all day, it could be due to lack of sleep or depression.
/ËlÉÎ¸ÉÊ¤i/. noun. Learner's definition of LETHARGY. [noncount]. : a lack of energy or a lack of interest in doing things: a lethargic feeling or state. â sometimes used figuratively. Symptoms of the disease include loss of appetite and lethargy. I snapped out of my lethargy and began cleaning the house.