Synonyms

reliability

American

[ri-lahy-uh-bil-i-tee] / rɪˌlaɪ əˈbɪl ɪ ti /

Sometimes reliableness

noun

the ability to be relied on or depended on, as for accuracy, honesty, or achievement.

Other Word Forms

nonreliability noun

Etymology

Origin of reliability

reliable + -ity

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.

A related study led by Dr Pedro Soares of the University of Minho, which tested the reliability of the molecular clock methods used in the analysis, was published in Scientific Reports.

From Science Daily • Apr. 9, 2026

“Global buyers may increasingly prioritize reliability over cost, which could accelerate a shift away from geopolitically exposed regions.”

From The Wall Street Journal • Apr. 7, 2026

Apple's "butterfly" keyboard design - a mechanism introduced in 2015 for laptop keyboards - was a "rare misstep in reliability", said Pickerell.

From BBC • Apr. 4, 2026

Neighbouring Arab Gulf states have frequently expressed concerns about the plant's reliability and raised the risk of radioactive leaks in the event of a major earthquake.

From Barron's • Apr. 4, 2026

Fact: Grapes don’t always explode with scientific reliability.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023