the relative incidence of a particular disease
"The hospital reported a high morbidity rate among patients who contracted the new flu strain during winter."
an abnormally gloomy or unhealthy state of mind
"his fear of being alone verges on morbidity"
the quality of being unhealthful and generally bad for you
"The high morbidity of living in that damp basement made it clear why no one wanted to stay there long-term."
The quality of being unhealthful or diseased, sometimes including the cause.
"The high morbidity in that valley was primarily caused by the contaminated well water and poor sanitation."