Dictionary

# probability

*noun*prob·a·bil·i·ty \ËŒprÃ¤-bÉ™-Ëˆbi-lÉ™-tÄ“\

: the chance that something will happen

: something that has a chance of happening

: a measure of how often a particular event will happen if something (such as tossing a coin) is done repeatedly

*plural*

**prob·a·bil·i·ties**

## Full Definition of *PROBABILITY*

1

**:**Â the quality or state of being probable

2

**:**Â something (as an event or circumstance) that is probable

3

*a*

*(1)*

**:**Â the ratio of the number of outcomes in an exhaustive set of equally likely outcomes that produce a given event to the total number of possible outcomes

*(2)*

**:**Â the chance that a given event will occur

*b*

**:**Â a branch of mathematics concerned with the study of probabilities

4

**:**Â a logical relation between statements such that evidence confirming one confirms the other to some degree

See probability defined for English-language learners

See probability defined for kids

## Examples of *PROBABILITY*

- There is a low
*probability*that you will be chosen. - There is some
*probability*of rain tomorrow. - With the dark clouds moving in, rain seems more like a
*probability*than a possibility. - The
*probability*of a coin coming up heads is one out of every two tries.

## First Known Use of *PROBABILITY*

15th century

## Related to *PROBABILITY*

- Synonyms
- liability, likelihood

- Antonyms
- improbability, unlikelihood, unlikeliness

## Other Mathematics and Statistics Terms

## Rhymes with *PROBABILITY*

actability, affability, arability, audibility, bankability, bearability, biddability, breathability, brushability, capability, changeability, clubbability, coilability, contractility, countability, credibility, crossability, culpability, curability, cutability, disability, disutility, drapability, drillability, drinkability, drivability, durability, dyeability, edibility, equability, erectility, fallibility, feasibility, fishability, flammability, flexibility, forgeability, formability, frangibility, friability, fungibility, fusibility, gullibility, hatchability, ignobility, imbecility, immobility, inability, incivility, indocility, infantility, infertility, instability, inutility, juvenility, leachability, legibility, liability, likability, livability, lovability, mailability, meltability, miscibility, movability, mutability, notability, packability, placability, plausibility, playability, pliability, portability, possibility, potability, pregnability, prehensility, printability, puerility, readability, rentability, risibility, roadability, salability, sensibility, sewability, shareability, sociability, solubility, solvability, spreadability, squeezability, stainability, stretchability, suitability, tenability, testability, traceability, trainability, treatability, tunability, usability, vendibility, versatility, viability, visibility, volatility, washability, wearability, wettability, workability

## Learn More About *PROBABILITY*

## Browse

Next Word in the Dictionary: probability curvePrevious Word in the Dictionary: probabilisticAll Words Near: probability

## Seen & Heard

What made you want to look up

probability? Please tell us where you read or heard it (including the quote, if possible).