Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

reliable

play
adjective re·li·able \ri-ˈlī-ə-bəl\

Simple Definition of reliable

  • : 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

Source: Merriam-Webster's Learner's Dictionary

Full Definition of reliable

  1. 1 :  suitable or fit to be relied on :  dependable

  2. 2 :  giving the same result on successive trials

reliableness

noun

reliably

play \-blē\ adverb

Examples of reliable in a sentence

  1. He's not very reliable. You can't always count on him to do what he says he'll do.

  2. We can't write a report without reliable data.

  3. We need more reliable information before we can take action.



1569

First Known Use of reliable

1569


2

reliable

noun re·li·able

Definition of reliable

  1. :  one that is reliable



1852

First Known Use of reliable

1852

Rhymes with reliable


RELIABLE Defined for Kids

reliable

play
adjective re·li·able \ri-ˈlī-ə-bəl\

Definition of reliable for Students

  1. :  fit to be trusted or relied on:  dependable <reliable information>

reliably

\-blē\ adverb



Medical Dictionary

reliable

play
adjective re·li·able \ri-ˈlī-ə-bəl\

Medical Definition of reliable

  1. :  giving the same result on successive trials <a reliable psychological test>





Seen and Heard

What made you want to look up reliable? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the act or an instance of embezzling

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

fox-in-summer-forest

Which of these is a synonym of inchoate?

experimental frightening massive formless
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ