What does noncontagious mean?
Noncontagious describes a disease, infection, or other condition that cannot be passed from one person or organism to another. The word is especially useful in medical and public-health settings, where it distinguishes conditions that may produce noticeable symptoms from those that can actually spread. A noncontagious illness may still be painful, disruptive, or medically serious; the term does not imply that it is harmless. It is also different from noninfectious: noncontagious focuses on transmission between people or organisms, while noninfectious focuses on the underlying cause. In everyday use, the word often appears in phrases such as noncontagious disease, especially when someone wants reassurance that a condition will not affect others.
adjectiveNot capable of being transmitted from one person or organism to another. It is commonly used of diseases, infections, and medical conditions that cannot be passed through contact or other ordinary means of transmission.
- Not capable of being transmitted from one person, animal, or organism to another.
"The doctor explained that the skin condition was noncontagious and could not be spread to other members of the household."
"The nurse confirmed that the rash was noncontagious, so no special isolation precautions were necessary."
"Many common skin conditions are noncontagious, although they can still cause considerable discomfort."
Not every illness is passed between people: the word noncontagious marks the important distinction between a condition that can spread and one that cannot.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does noncontagious come from?
The word combines the English negative prefix non- with contagious. Contagious ultimately derives from Latin contagiosus, associated with contāgium, meaning contact, transmission, or contagion, and from contingere, meaning to touch. The prefixed form became established in English during the 19th century as a way of describing conditions that cannot be communicated from person to person.
Related word forms
How noncontagious is actually used
The adjective is most common in medical and public-health contexts. It is often used with conditions that can be serious but do not spread from person to person. It should not be used as a substitute for noninfectious when the issue is whether a condition has an infectious cause.
Easily confused with noncontagious
Noncontagious means that a condition cannot be passed from person to person, whereas noninfectious means that it is not caused by an infection.