What does preventative mean?
Preventative is an adjective describing something that is intended to stop an undesirable event or condition before it occurs. It is especially associated with healthcare, as in preventative medicine, where the aim is to reduce the likelihood of disease rather than treat it after it has developed. The word is also used more broadly for precautions, interventions, and policies designed to prevent accidents, damage, or other problems. Its meaning closely overlaps with preventive, which is generally more common in formal and international English, while preventative is particularly frequent in North American usage. As a noun, a preventative is a measure or treatment that helps avert something undesirable. The term is useful because it emphasizes prevention as a deliberate and often cost-effective approach to avoiding larger problems later.
Serving to prevent or reduce the likelihood of an undesirable event, condition, or illness.
"The doctor recommended preventative care for people with a history of heart disease."
Common in medical and public-health contexts, especially in North American English.
A preventive measure, remedy, or treatment intended to avert an undesirable event or condition.
"Vaccination is an important preventative against many infectious diseases."
Less common as a noun; preventive is often preferred in formal writing.
The plural is used when referring to multiple preventive measures, treatments, or safeguards.
"The building has several fire preventatives, including alarms and automatic sprinklers."
Preventative is best remembered as the adjective in “preventative medicine”: care intended to stop a disease before it begins.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does preventative come from?
Preventative developed from the English verb prevent, which comes from Latin praevenire, meaning “to come before” or “to anticipate.” The suffix -ative is associated with forming words that describe an action or quality of preventing. The related form preventive also derives from prevent, and both words have long been used in medical and general English.
Related word forms
How preventative is actually used
Preventative is especially common in American English and is widely used in medical and public-health contexts. The closely related form preventive is often preferred in formal, technical, and British English. As a noun, preventative is less common than the adjective and is sometimes considered less standard than preventive in formal writing.
Easily confused with preventative
Both terms are closely related, but preventative is especially common in North American English, while preventive is widely used in formal and international contexts.