reliability

noun

re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbi-lə-tē 

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

• reliableness
• dependability
• responsibility
• trustworthiness
• solidity

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

Chip manufacturers need equipment to deliver extremely high levels of precision, repeatability and reliability while operating continuously in production environments. — Christopher McFadden, Interesting Engineering, 7 Sep. 2026

The Asus Vivobook 16 is engineered to handle heavy multitasking, document processing, and media streaming with effortless reliability. — Juhi Wadia, PC Magazine, 6 Sep. 2026

Factory visits from Strange Parts and Bitner Built add a little weight to these promises, but questions around long-term reliability, software polish, calibration, and real-world print quality will have to wait until production machines reach users. — New Atlas, 5 Sep. 2026

The value of Nico Dominguez’s versatility is easy to underestimate, with the Argentinian capable of slotting into numerous midfield roles with craft and reliability. — Paul Taylor, New York Times, 5 Sep. 2026

Word History

First Known Use

1810, in the meaning defined at sense 1

Rhymes for reliability

• affability
• audibility
• bistability
• capability
• changeability
• contractility
• credibility
• culpability
• disability
• disutility
• durability
• fallibility

Kids Definition

reliability

noun

re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē 

plural reliabilities

: the quality or state of being reliable

Medical Definition

reliability

noun

re·​li·​abil·​i·​ty ri-ˌlī-ə-ˈbil-ət-ē 

plural reliabilities

: the extent to which an experiment, test, or measuring procedure yields the same results on repeated trials