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Synonyms

reliable

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

adjective

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

    reliable information.

    Synonyms:
    consistent, authentic, trusty
    Antonyms:
    deceitful, questionable, undependable

reliable British  
/ rɪˈlaɪəbəl /

adjective

  1. able to be trusted; predictable or dependable

"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

Related Words

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.

Other Word Forms

  • nonreliable adjective
  • nonreliableness noun
  • nonreliably adverb
  • quasi-reliable adjective
  • quasi-reliably adverb
  • reliability noun
  • reliableness noun
  • reliably adverb
  • ultrareliable adjective
  • ultrareliablely adverb

Etymology

Origin of reliable

First recorded in 1560–70; rely + -able

Compare meaning

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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.

The dollar reigns in part because countries and companies consider the U.S. political system stable and appreciate having reliable places to park their extra dollars, especially U.S.

From The Wall Street Journal

But they have worked to portray themselves as reliable partners for the American government in energy markets and critical-mineral supply chains.

From The Wall Street Journal

King chose it not because it was the worst city in the South, but because Bull Connor was reliable.

From The Wall Street Journal

Demonstrations have been reported in almost 200 cities spanning all 31 of Iran’s provinces, but researchers don’t have reliable access to witnesses in all of those locations.

From The Wall Street Journal

The book convincingly presents the indigenous case for animism—that nature is fully alive at all levels, and that stones are our most ancient and reliable communicators.

From The Wall Street Journal