The Collaborative International Dictionary
Unwellness
Unwellness \Un*well"ness\, n. Quality or state of being unwell.
Wiktionary
unwellness
n. The state or characteristic of being unwell; a feeling of slight to moderate sickliness.
WordNet
Usage examples of "unwellness".
As awareness slowly returned the next morning, she recognized that Gavin was right-her chronic unwellness had probably been a sign that the pregnancy was doomed from the start.
He was pale and even turning down food—a sure sign of extreme unwellness for the French gourmand.
Cancer was a vague sense of unwellness, but chemo was an endless series of specific horrors, until I began to think the cure was as bad as, or worse than, the disease.