risk factor

noun

: something that increases risk or susceptibility

Examples of risk factor in a Sentence

Age is one of the risk factors for this disease.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Having a body weight that is classified as overweight or obese is a risk factor for high blood pressure and heart disease. Carrie Madormo, Verywell Health, 6 Jan. 2026 Geopolitically, the fragmentation of global trade landscapes remains a primary risk factor. Angela Velasquez, Sourcing Journal, 6 Jan. 2026 When delusions intensify during prolonged chatbot use, AI interaction may represent a contributing risk factor rather than a coincidence. Kurt Knutsson, FOXNews.com, 5 Jan. 2026 Social isolation is a major risk factor for cognitive decline. Helen Carefoot, Flow Space, 1 Jan. 2026 See All Example Sentences for risk factor

Word History

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of risk factor was in 1907

Browse Nearby Words

Cite this Entry

“Risk factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/risk%20factor. Accessed 10 Jan. 2026.

Kids Definition

risk factor

noun
: something that increases the possibility that something bad will happen
cigarette smoking is a risk factor for lung cancer

Medical Definition

risk factor

noun
: something that increases risk or susceptibility
poorly controlled hypertension is a risk factor for coronary heart disease

More from Merriam-Webster on risk factor

Last Updated: - Updated example sentences
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