US and UK English
preventive vs preventative
Regional usage, spelling, and examples
Preventive and preventative both mean intended to stop something undesirable. Preventive is older, shorter, and generally more common.
Regional decision guide
Prefer the shorter form unless your style says otherwise
The difference is frequency and rhythm, not meaning. Preserve established technical phrases and house style.
American and international edited English
preventive
Broad default
Preventive is the more common concise form in medicine and general prose.
Preventive care can identify risks early.
British and everyday usage
preventive or preventative
Established longer form
Preventative is standard and widely used, even though preventive remains common.
The team introduced preventative measures.
Direct answer
What is the difference?
Both adjectives are standard, and both also occur as nouns in specialized contexts. Preventive is usually the safer edited choice because it is more frequent across varieties. Preventative adds an extra “ta” syllable and is especially familiar in British usage, but it is not wrong in American English.
Optional listening · American English
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Word 1
preventive
adjective or noun
Designed to stop illness, damage, or another unwanted event.
US pronunciation
/prɪˈvɛntɪv/
UK IPA
/prɪˈventɪv/
Hear three samples
How to pronounce it
Use three syllables, stress VEN, and move directly from the N sound into the final “tiv.”
Word 2
preventative
adjective or noun
Intended to prevent something; a longer variant of preventive.
US pronunciation
/prɪˈvɛntətɪv/
UK IPA
/prɪˈventətɪv/
Hear three samples
How to pronounce it
Use four syllables and insert a light “tuh” after stressed VEN before finishing with “tiv.”
Listen in context
6 example sentences
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Examples with
preventive
- The clinic emphasizes preventive medicine.
- Regular maintenance is a useful preventive measure.
- They took preventive action before the storm.
Examples with
preventative
- The policy includes several preventative steps.
- Preventative treatment began before symptoms appeared.
- They described the repair as a preventative measure.
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