Dictionary.com
Thesaurus.com

risk factor

American  

noun

  1. a condition, behavior, or other factor that increases risk.

    Smoking is a major risk factor for cancer;

    depression as a risk factor in suicide.


risk factor British  

noun

  1. med a factor, such as a habit or an environmental condition, that predisposes an individual to develop a particular disease

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of risk factor

First recorded in 1945–50

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“Foreign-exchange movements are one upside risk factor that requires close attention,” he added.

From The Wall Street Journal Sep. 2, 2026

"Because chronic stress is a risk factor for dementia, our study reveals a critical mechanism for how stress hormones destabilize this sensitive region," explains Akan.

From Science Daily Aug. 9, 2026

The Zurich Cantonal Bank said in a market commentary that the settlement "brings clarity" to a protracted legal dispute, where the litigation has been disclosed as a risk factor in every annual report since 2016.

From Barron's Aug. 3, 2026

Obesity also is a risk factor that increases the likelihood of developing Alzheimer’s disease and dementia, according to the National Institutes of Health.

From MarketWatch Jul. 27, 2026

“Not you. He was investigating Ethan and the community project at the mission. Making sure the risk factor was minimal.”

From "The Adoration of Jenna Fox" by Mary E. Pearson

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training