AskDefine | Define unreliable

Dictionary Definition

unreliable adj
1 liable to be erroneous or misleading; "an undependable generalization" [syn: undependable]
2 not to be trusted [syn: undependable]
3 not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant" [syn: undependable] [ant: reliable, reliable]
4 dangerously unstable and unpredictable; "treacherous winding roads"; "an unreliable trestle" [syn: treacherous]
5 lacking a sense of responsibility

User Contributed Dictionary



  1. Not reliable.


not reliable

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:
unreliable in German: Zuverlässigkeit
unreliable in French: Fiabilité
unreliable in Dutch: Betrouwbaarheid
unreliable in Polish: Niezawodność
unreliable in Portuguese: Confiabilidade
unreliable in Russian: Надёжность
unreliable in Serbian: Поузданост
unreliable in Sundanese: Reliability

Synonyms, Antonyms and Related Words

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