: one that is reliable
Examples of reliable in a Sentence
Adjective
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.
Recent Examples on the Web
Ken Silverstein, Forbes.com, 10 May 2026
For years, however, scientists lacked a reliable way to measure the real-time power of these jets.
—Rupendra Brahambhatt, Interesting Engineering, 10 May 2026
Joseph Dycus, Mercury News, 16 Apr. 2026
The explorers, in over their heads, ran for cover to an old reliable, and arrived at the house’s whiskey sour: a sweet, frothy delicacy topped with exquisitely marbled foam.
—Sheldon Pearce, New Yorker, 20 Feb. 2026
See All Example Sentences for reliable
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Adjective
The next is making the grid intelligent enough to absorb that power at scale—flexible, predictive, and reliable.
—Ken Silverstein, Forbes.com, 10 May 2026
For years, however, scientists lacked a reliable way to measure the real-time power of these jets.
—Rupendra Brahambhatt, Interesting Engineering, 10 May 2026
Noun
With 50 seconds remaining in the Warriors’ play-in game against the host Clippers at Intuit Dome, Golden State’s two aging Hall of Famers went back to old reliable.
—Joseph Dycus, Mercury News, 16 Apr. 2026
The explorers, in over their heads, ran for cover to an old reliable, and arrived at the house’s whiskey sour: a sweet, frothy delicacy topped with exquisitely marbled foam.
—Sheldon Pearce, New Yorker, 20 Feb. 2026
See All Example Sentences for reliable
Cite this Entry
“Reliable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reliable. Accessed 16 May. 2026.
Copy CitationMedical Definition
reliable
adjective
re·li·able
ri-ˈlī-ə-bəl 
: giving the same result on successive trials
a reliable psychological test
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