Dictionary
1reliable
adjective re·li·able \ri-ˈlī-ə-bəl\
: able to be trusted to do or provide what is needed : able to be relied on
: able to be believed : likely to be true or correct
Full Definition of RELIABLE
1
: suitable or fit to be relied on : dependable
2
: giving the same result on successive trials
— re·li·able·ness noun
— re·li·ably \-blē\ adverb
See reliable defined for English-language learners
See reliable defined for kids
ADVERTISEMENT
Examples of RELIABLE
- He's not very reliable. You can't always count on him to do what he says he'll do.
- We can't write a report without reliable data.
- We need more reliable information before we can take action.
First Known Use of RELIABLE
1569
Related to RELIABLE
- Synonyms
- calculable, good, dependable, responsible, safe, secure, solid, steady, sure, tried, tried-and-true, true, trustable, trustworthy, trusty
- Antonyms
- dodgy [chiefly British], uncertain, undependable, unreliable, unsafe, untrustworthy
2reliable
noun
Definition of RELIABLE
: one that is reliable
First Known Use of RELIABLE
1852
RELIABLE Defined for Kids
reliable
adjective re·li·able \ri-ˈlī-ə-bəl\
Definition of RELIABLE for Kids
: fit to be trusted or relied on: dependable <reliable information>
— re·li·ably \-blē\ adverb
Medical Dictionary
reliable
adjective re·li·able \ri-ˈlī-ə-bəl\
Medical Definition of RELIABLE
: giving the same result on successive trials <a reliable psychological test>
Learn More About RELIABLE
Browse
Next Word in the Dictionary: reliancePrevious Word in the Dictionary: reliability coefficientAll Words Near: reliable
Seen & Heard
What made you want to look up reliable? Please tell us where you read or heard it (including the quote, if possible).