Poor health resulting from disease of body or mind; sickness.(noun)
Obsolete Evil; wickedness.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "illness" in a sentence
"Along with the addiction is the mental illness, systemic poverty, scary lack of parenting skills, and *illness*."
"Both Meirelles and author Saramago have stated that the title illness is not meant to be taken literally."
"So far, the only manifestation of his illness is the fact that he says whatever the hell is on his mind, with no filter."