unreliable
adjective
un·re·li·able
ˌən-ri-ˈlī-ə-bəl 
: not reliable : undependable, untrustworthy
an unreliable friend
an unreliable source of funding
an unreliable car
unreliability
noun
the unreliability of the data
a person with a reputation for unreliability
Examples of unreliable in a Sentence
Recent Examples on the Web
The song was the first Number One of the SoundScan era, when Billboard implemented a new accounting system that relied on point-of-sales data as opposed to sometimes-unreliable surveys from record sellers.
—
Jon Blistein, Rolling Stone, 13 Nov. 2025
When your data quality is poor, things are going to go downhill fast because that leads to flawed models producing unreliable outputs.
—Kathleen Walch, Fortune, 11 Nov. 2025
Additionally, infrastructure already weakened by previous flooding may be increasingly unreliable.
—Robert Birsel, MSNBC Newsweek, 6 Nov. 2025
The overwhelming majority of experts dispute that torture actually works as an interrogation technique, arguing that any information that comes out of it is unreliable as people under duress will say anything needed to convince their torturers to stop.
—Ellen Mitchell, The Hill, 5 Nov. 2025
See All Example Sentences for unreliable
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Jon Blistein, Rolling Stone, 13 Nov. 2025
When your data quality is poor, things are going to go downhill fast because that leads to flawed models producing unreliable outputs.
—Kathleen Walch, Fortune, 11 Nov. 2025
Additionally, infrastructure already weakened by previous flooding may be increasingly unreliable.
—Robert Birsel, MSNBC Newsweek, 6 Nov. 2025
The overwhelming majority of experts dispute that torture actually works as an interrogation technique, arguing that any information that comes out of it is unreliable as people under duress will say anything needed to convince their torturers to stop.
—Ellen Mitchell, The Hill, 5 Nov. 2025
See All Example Sentences for unreliable
Cite this Entry
“Unreliable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unreliable. Accessed 14 Nov. 2025.
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