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reliable

[ ri-lahy-uh-buhl ]
/ rɪˈlaɪ ə bəl /
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adjective

that may be relied on or trusted; dependable in achievement, accuracy, honesty, etc.: reliable information.

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Origin of reliable

First recorded in 1560–70; rely + -able
Reliable, infallible, trustworthy apply to persons, objects, ideas, or information that can be depended upon with confident certainty. Reliable suggests consistent dependability of judgment, character, performance, or result: a reliable formula, judge, car, meteorologist. Infallible suggests the complete absence of error, breakdown, or poor performance: an infallible test, system, marksman. Trustworthy emphasizes the steady and honest dependability which encourages one's confidence, belief, or trust: trustworthy and accurate reports.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for reliable

reliable
/ (rɪˈlaɪəbəl) /

adjective

able to be trusted; predictable or dependable
reliability or rare reliableness, nounreliably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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