reliable
/ɹɪˈlaɪəbəl/
Reliability is about the absence of surprise. It describes a predictable consistency where the outcome matches the expectation every single time. While 'trustworthy' often implies a moral or emotional bond, 'reliable' is more mechanical and performance-based.
When applied to people, it suggests a steady, dependable nature—someone who doesn't flake or fail under pressure. It carries a strong positive connotation of stability and competence.
When applied to information or objects (like a car or a news source), it means the item does not break down or provide false data. It is the opposite of 'fickle' or 'erratic'.
💬Casual Conversation
Mrs. Henderson bailed on the bake sale setup again. So unreliable.
Mrs. Henderson bailed on the bake sale setup again. So unreliable.
Honestly, shocker. Welcome to adulting.
Honestly, shocker. Welcome to adulting.
Meanings
Consistently good in quality or performance; able to be trusted.
She is a reliable employee who always meets her deadlines.
Providing accurate and trustworthy information.
We need a reliable source of news for the report.
Examples
We found a reliable babysitter.
Historical records provide a reliable account of events.
Collocations & Compounds
reliable source
A source of information that can be trusted to be accurate and factual.
Always check for a reliable source before sharing news.
reliable car
A vehicle that is dependable and unlikely to break down.
He bought a used car that was known for being reliable.
reliable data
Information that is accurate, consistent, and can be depended upon.
The study's conclusions are based on reliable data.
reliable information
Facts or details that are trustworthy and can be depended upon.
It's important to get reliable information from official channels.
reliable witness
A person who testifies in court and whose account is considered truthful and accurate.
The prosecution's case hinges on the testimony of a reliable witness.
Etymology
The word 'reliable' comes from the Latin word 're-', meaning 'back' or 'again,' and 'ligare,' meaning 'to bind.' It entered English in the mid-19th century, initially meaning 'able to be called upon or appealed to.' The sense of 'dependable' or 'trustworthy' became dominant by the late 19th century.