Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “reliable”

See all translations

reliable

adjective uk   /rɪˈlaɪə.bl̩/ us  
B1 Someone or something that is reliable can be trusted or believed because he, she, or it works or behaves well in the way you expect: Is your watch reliable? reliable information Gideon is very reliable - if he says he'll do something, he'll do it.
Opposite
More examples
reliability
noun [U] uk   /rɪˌlaɪəˈbɪl.ɪ.ti/ us    /-ə.t̬i/
C1 Rolls-Royce cars are famous for their quality and reliability.
reliably
adverb uk   /-bli/ us  
I am reliably informed that you have been talking about resigning from the company.
(Definition of reliable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of reliable?
Add Cambridge dictionaries to your browser to your website

Definitions of “reliable” in other dictionaries

Word of the Day

hard luck story

a story or piece of information that someone tells you or writes about himself or herself, intended to make you feel feel sympathy for that person

Word of the Day

A certain je ne sais quoi: French words and phrases used in English

by Liz Walter,
January 21, 2015
It is an odd irony that the more sophisticated your use of English is, the more likely you are to use French words and phrases. Or, to be more accurate, ones you know to be French – words such as ballet, au pair, abattoir, fiancé, café, and restaurant are so entrenched in

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More