AskDefine | Define reliable

Dictionary Definition

reliable adj
1 worthy of reliance or trust; "a reliable source of information"; "a dependable worker" [syn: dependable] [ant: unreliable, unreliable]
2 conforming to fact and therefore worthy of belief; "an authentic account by an eyewitness"; "reliable information" [syn: authentic]
3 worthy of being depended on; "a dependable worker"; "an honest working stiff"; "a reliable source of information"; "he was true to his word"; "I would be true for there are those who trust me" [syn: dependable, honest, true(p)]

User Contributed Dictionary



  • , /rɪˈlaɪəbəl/, /rI"laI@b@l/



  1. Suitable or fit to be relied on; worthy of dependance or reliance; trustworthy.
    • Quotations
    A reliable witness to the truth of the miracles. --A. Norton.
    The best means, and most reliable pledge, of a higher object. --Coleridge.
    According to General Livingston's humorous account, his own village of Elizabethtown was not much more reliable, being peopled in those agitated times by unknown, unrecommended strangers, guilty-looking Tories, and very knavish Whigs. --W. Irving.
  2. Of a communication protocol, in which a sent packet will reach its destination, even if it requires retransmission, or the sender will be told that it didn't.


to be relied on
  • Czech: spolehlivý
  • Finnish: luotettava
  • French: fiable
  • German: verlässlich, zuverlässig
  • Hungarian: megbízható, szavahihető
  • Portuguese: fiável
  • West Frisian: fertroud

Extensive Definition

In general, reliability (systemic def.) is the ability of a person or system to perform and maintain its functions in routine circumstances, as well as hostile or unexpected circumstances.
The IEEE defines it as ". . . the ability of a system or component to perform its required functions under stated conditions for a specified period of time."
Reliability may refer to:
reliable in German: Zuverlässigkeit
reliable in French: Fiabilité
reliable in Dutch: Betrouwbaarheid
reliable in Polish: Niezawodność
reliable in Portuguese: Confiabilidade
reliable in Russian: Надёжность
reliable in Serbian: Поузданост
reliable in Sundanese: Reliability

Synonyms, Antonyms and Related Words

absolute, accurate, adducible, admissible, apposite, attestative, attested, attestive, authentic, authenticated, balanced, based on, believable, calculable, certain, circumstantial, circumstantiated, cogent, colorable, compelling, conceivable, conclusive, confirmed, conscientious, convincing, cool, credible, cumulative, damning, decisive, dependable, determinative, documentary, documented, evidential, evidentiary, ex parte, eye-witness, factual, fail-safe, faithful, faithworthy, fast, fiducial, fiduciary, final, firm, firm as Gibraltar, firsthand, founded on, grounded on, guaranteed, harmless, hearsay, honest, honorable, imperturbable, implicit, in equilibrium, incontrovertible, incorruptible, indicative, indisputable, inerrable, inerrant, infallible, invincible, inviolable, invulnerable, irrefutable, irresistible, material, meaningful, nuncupative, overwhelming, plausible, predictable, presumptive, principled, probative, proven, punctilious, reputable, responsible, riskless, safe, secure, significant, solid, sound, stable, staunch, steadfast, steady, straight, substantial, suggestive, sure, surefire, symptomatic, telling, tenable, tested, to be trusted, tried, tried and true, true, trustable, trusted, trustworthy, trusty, undangerous, unerring, unexceptionable, unfailing, unfalse, unflappable, unflinching, unhazardous, unimpeachable, unperfidious, unperilous, unprecarious, unquestionable, unrisky, unshakable, untreacherous, unwavering, valid, validated, verified, warranteed, weighty, well-balanced, well-founded, well-grounded, without nerves, worthy of faith
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1