reliability

noun

re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbi-lə-tē How to pronounce reliability (audio)
Synonyms of reliabilitynext
1
: the quality or state of being reliable
2
: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials

Synonyms of reliability

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Examples of reliability in a Sentence

we never had reason to question the reliability of the park rangers in the event of an emergency
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.
Military observers noted that the dead load test represents an early-stage evaluation carried out before full aircraft launch trials, helping validate the performance and reliability of the electromagnetic launch system. — Bojan Stojkovski, Interesting Engineering, 2 Aug. 2026 Identity, security, reliability, enforceability, and accountability had to be built into the product. — Keith Krach, Fortune, 1 Aug. 2026 Conventional industrial robots still beat humanoids on speed, precision and reliability for repetitive factory work. — Ron Schmelzer, Forbes.com, 31 July 2026 The city’s water supply and reliability won’t be impacted, as the data center operates without water for roughly 85% of the year. — Elizabeth Campbell, Fort Worth Star-Telegram, 30 July 2026 See All Example Sentences for reliability

Word History

First Known Use

1810, in the meaning defined at sense 1

Time Traveler
The first known use of reliability was in 1810

Rhymes for reliability

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Browse Nearby Words

relevé
reliability
reliability coefficient
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Cite this Entry

“Reliability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reliability. Accessed 5 Aug. 2026.

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Kids Definition

reliability

noun
re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē How to pronounce reliability (audio)
plural reliabilities
: the quality or state of being reliable

Medical Definition

reliability

noun
re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē How to pronounce reliability (audio)
plural reliabilities
: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials

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Nglish: Translation of reliability for Spanish Speakers

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