What does precautionary mean?
Precautionary is an adjective meaning concerned with taking precautions or intended to prevent harm before it occurs. It is especially common in discussions of safety, law, public health, finance, and environmental policy, where a measure may be adopted because of a possible but unconfirmed danger. A precautionary measure is not necessarily a response to an existing crisis; its purpose is to reduce the likelihood or impact of a future problem. The word often carries a practical, responsible connotation, although in some contexts it can imply unnecessary caution. It is also related in meaning and origin to caution, cautious, and cautionary, but it is more specifically associated with preventive action rather than general carefulness or a warning. The word is used in both British and American English and is especially natural in formal and institutional registers.
adjectivePrecautionary means taken or intended as a precaution to prevent harm, danger, or loss. It describes measures, actions, or attitudes that are adopted in anticipation of possible problems.
- Relating to or involving precaution; intended to prevent harm, loss, or other undesirable outcomes.
"The committee introduced precautionary measures to reduce the risk of contamination."
"The airport introduced precautionary checks for passengers arriving from the affected region."
"As a precautionary measure, the company paused the project until the safety review was complete."
Precautionary is the adjective for the smart move made before trouble arrives: a small step today can prevent a large problem tomorrow.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does precautionary come from?
Precautionary was formed in the 19th century from the noun precaution with the suffix -ary, meaning “pertaining to” or “connected with.” Precaution itself comes through the Latin praecautio, from praecautus, meaning “careful” or “cautious,” combining prae- (“before”) with cavere (“to beware”). The related English words caution, cautious, and cautionary developed from the same Latin root. Precarious also has a related Latin origin involving a dangerous edge or precipice, though it is not a direct derivative of precautionary.
Related word forms
How precautionary is actually used
Precautionary is formal and commonly used in official, legal, scientific, and safety-related contexts. It generally implies action taken before a risk materializes and can occasionally suggest caution that some people consider excessive.
Easily confused with precautionary
Precautionary describes actions or measures taken to prevent harm, whereas cautionary describes a warning or advice about possible risks.
Precautionary is commonly used of preventive measures and policies, while cautious more often describes a person's careful attitude or behavior.