Illnesses adjectives are listed in this post. Each word below can often be found in front of the noun illnesses in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ILLNESSES.
acute, associated, borne, catastrophic, certain, chronic, common, comorbid, contagious, critical, dangerous, debilitating
dementing, depressive, different, emotional, fatal, febrile, fewer, foodborne, frequent, gastrointestinal, human, incurable
infectious, like, long, major, many, medical, mental, minor, more, most, multiple, mysterious
neurological, new, numerous, occupational, other, own, particular, past, physical, preventable, previous, psychiatric
psychological, psychosomatic, psychotic, recent, related, respiratory, same, serious, several, severe, specific, such
sudden, systemic, term, terminal, threatening, various, viral
Hope this word list had the adjective used with illnesses you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.