Synonyms of illnesses

illnesses

noun

plural of illness

as in diseases

an abnormal state that disrupts a plant's or animal's normal bodily functioning

suffered from a mysterious illness that left her weak and tired all the time

Synonyms & Similar Words

• diseases
• ailments
• sicknesses
• ills
• fevers
• conditions
• disorders
• infections
• maladies
• attacks
• bugs
• complications
• infirmities
• ails
• distempers
• troubles
• complaints
• plagues
• distemperatures
• affections
• contagious diseases
• contagions
• weaknesses
• debilities
• bouts
• epidemics
• malaises
• spells
• pests
• matters
• pestilences
• contagia
• decrepitudes
• fits
• pips

Example Sentences

Recent Examples of illnesses

There are many studies that have unequivocally demonstrated that COVID-19 vaccines decreased hospitalization and severe illnesses from COVID-19 for children and adolescents. — Omer Awan, Forbes.com, 2 Aug. 2026

That can increase the likelihood and progression of a variety of chronic illnesses, Holt-Lundstad said. — Taylor Seely, USA Today, 1 Aug. 2026

Having that excess fat disappear can help reduce the risk of illnesses such as diabetes, heart disease and some cancers. — Adam Kovac, Scientific American, 31 July 2026

The company’s 2030 ambition, laid out in 2019, is to cut carbon emissions in half, help customers annually conserve 300 billion gallons of water and protect 2 billion people from foodborne illnesses. — Diane Brady, Fortune, 31 July 2026

This summer’s conditions, amid extreme heat, poor air quality and foodborne illnesses, have contributed to lower donor turnout, the Red Cross reported. — Angelica Stabile, FOXNews.com, 31 July 2026

On both, as ever, his illegible mumble suggests shame in his own voice, or even guilt about being here at all (some of his enduring illnesses relate to PTSD from cradling a dying friend in his lap after a gang attack as a teen). — Jazz Monroe, Pitchfork, 30 July 2026

Now, states, legal advocates, and people with chronic illnesses are scrambling to figure out what health conditions let patients evade the requirements, and how people should prove the severity of their disease. — Isabella Cueto, STAT, 30 July 2026

Only two other councilmembers missed more meetings than Rodriguez — mayoral candidate Nithya Raman, who missed 30 meetings, and Curren Price, who missed 34 while dealing with illnesses. — Los Angeles Times, 25 July 2026