actuarial

American  

[ak-choo-air-ee-uhl] / ˌæk tʃuˈɛər i əl /

Rarely actuarian

adjective

1. Insurance. relating to or being the science of computing premium rates, risks, dividends, etc., according to probabilities based on statistics.

   Over this period, the fund earned a return of 14.37%, exceeding the actuarial assumed return of 7.70%.

---

Other Word Forms

• actuarially
  adverb

Etymology

Origin of actuarial

First recorded in 1850–55; actuar(y) ( def. ) + -ial ( def. )

Explanation

Actuarial data are the statistics used to calculate various sorts of risk that insurance companies insure people against. If you want to know how likely it is for your car to be stolen, there is surely some actuarial data that could give you an answer. Actuarial science includes statistics, probability, mathematics, and economics, and the people trained in it are called actuaries. When you buy a homeowner's insurance policy, for instance, the insurance company calculates how much they’ll charge you by consulting the actuarial data, which tells them how likely it is that something will happen to your house (based on how old your house is, where it’s located, the building materials, your credit rating, and lots of other factors).

Example Sentences

See Examples For:

actuarial

The insurance company, using bond yields and actuarial tables, works out what sort of interest rate it can pay on average to a large pool of customers of a particular age.

From MarketWatch ● Aug. 31, 2026

“Greenspan used his expertise as an economic empiricist to convince both sides to agree on a singular, shared set of actuarial facts. Quite an accomplishment.”

From Los Angeles Times ● Jun. 25, 2026

An actuarial approach, dividing a portfolio by remaining life expectancy, can be used but introduces too much spending fluctuation.

From The Wall Street Journal ● Jun. 23, 2026

Each year, you do the actuarial calculation and check the result against the band.

From The Wall Street Journal ● Jun. 23, 2026

The authorities were extremely strict about this, and the only kind of publication that would pass muster might be a quarterly on actuarial science for a prisoner studying accounting.

From "Long Walk to Freedom" by Nelson Mandela